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 Starts up and dies ( now with Video!!!!)

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+9
1998 Riv
turtleman
albertj
palermocorey90
Steve98
deekster_caddy
TonySmooth89
AA
oldsman105
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oldsman105
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oldsman105


Name : Enrique Patino
Age : 39
Location : Queens, New York City
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Starts up and dies ( now with Video!!!!) Empty
PostSubject: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) EmptySun Oct 12, 2008 2:50 pm

OK ... I have been battling my Riv for over a week. It started last sunday when the car started to misfire. So far I have replaced

Plug wires
Coils
ICM
Fuel ressure regulator
Fuel Pump
Crank senor
Cam sensor
PCM
MAF sensor

Car still runs terrible and misfires. Compression is 145 psi across all cylinder. LTFT are locked at +16.4. Checked all body grounds.

Any ideas?


Last edited by oldsman105 on Sat Oct 18, 2008 5:18 pm; edited 1 time in total
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AA
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AA


Name : Aaron
Age : 47
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Starts up and dies ( now with Video!!!!) Empty
PostSubject: Re: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) EmptySun Oct 12, 2008 3:07 pm

Vac leak.

_________________
'05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26

'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes

'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'70 Ninety-Eight Holiday Coupe 455cid • 116k miles
^^^ SOLD ^^^ frown
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oldsman105
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oldsman105


Name : Enrique Patino
Age : 39
Location : Queens, New York City
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Starts up and dies ( now with Video!!!!) Empty
PostSubject: Re: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) EmptySun Oct 12, 2008 3:09 pm

Oh I for got to mention.I wasted 2 cans of carb cleaner looking for a vac leak. Didn't find any.
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AA
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AA


Name : Aaron
Age : 47
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Starts up and dies ( now with Video!!!!) Empty
PostSubject: Re: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) EmptySun Oct 12, 2008 3:14 pm

Do you know for sure the MAF sensor is working correctly and connected properly?

How old is the O2 sensor?

_________________
'05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26

'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes

'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'70 Ninety-Eight Holiday Coupe 455cid • 116k miles
^^^ SOLD ^^^ frown
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http://www.cardomain.com/ride/657082/4
oldsman105
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oldsman105


Name : Enrique Patino
Age : 39
Location : Queens, New York City
Joined : 2007-01-24
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Starts up and dies ( now with Video!!!!) Empty
PostSubject: Re: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) EmptySun Oct 12, 2008 3:23 pm

Yes. I check for 5 volt refrence from the wire. And I also bought a new one to replace it just to be sure. and MaF readings are 3400-3700 at idle.

O2 is maybe 7k old.
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TonySmooth89
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TonySmooth89


Name : Anthony
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Starts up and dies ( now with Video!!!!) Empty
PostSubject: Re: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) EmptySun Oct 12, 2008 3:24 pm

Did you check your tune to make sure that the fuel trims are not reset to stock? I could see with your mods the stock fuel trims not keeping up is a possibility.

Is it just idling rough and then dying? Will it run normally under throttle in higher RPM operation?
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oldsman105
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oldsman105


Name : Enrique Patino
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Starts up and dies ( now with Video!!!!) Empty
PostSubject: Re: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) EmptySun Oct 12, 2008 3:29 pm

If you accelerate slowly to 20% throttle it will smooth out. If you stab the throttle it fire on 2 cylinders . Its actuallty kinda funny if it wasn't so sad.

I reloaded my tune on thew old and new PCMs no change. I checked the setting both times,they were fine.


Last edited by oldsman105 on Sun Oct 12, 2008 3:46 pm; edited 1 time in total
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TonySmooth89
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TonySmooth89


Name : Anthony
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Starts up and dies ( now with Video!!!!) Empty
PostSubject: Re: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) EmptySun Oct 12, 2008 3:32 pm

Did you check to make sure the plug wires were on in the right order?

How much vacuum are you pulling at idle?
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oldsman105
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oldsman105


Name : Enrique Patino
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Starts up and dies ( now with Video!!!!) Empty
PostSubject: Re: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) EmptySun Oct 12, 2008 3:40 pm

yes plug wires are in the right order. ( I had it checked by 3 mechanincs on 3 seperate occasions razz)

Pulling 19-20 Inhg at idle.
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deekster_caddy
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Name : Derek
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Starts up and dies ( now with Video!!!!) Empty
PostSubject: Re: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) EmptySun Oct 12, 2008 11:49 pm

You pulled and inspected/replaced the spark plugs? (didn't see it in your list)
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AA
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AA


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Starts up and dies ( now with Video!!!!) Empty
PostSubject: Re: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) EmptyMon Oct 13, 2008 12:02 am

did you correctly compensate for the larger injectors?

_________________
'05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26

'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes

'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'70 Ninety-Eight Holiday Coupe 455cid • 116k miles
^^^ SOLD ^^^ frown
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http://www.cardomain.com/ride/657082/4
deekster_caddy
Master



Name : Derek
Age : 52
Location : Reading, MA
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Starts up and dies ( now with Video!!!!) Empty
PostSubject: Re: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) EmptyMon Oct 13, 2008 12:06 am

AA wrote:
did you correctly compensate for the larger injectors?

Good point. That high LTFT tells me something else is wrong. MAF Table or IFR table gone awry...
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oldsman105
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oldsman105


Name : Enrique Patino
Age : 39
Location : Queens, New York City
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Starts up and dies ( now with Video!!!!) Empty
PostSubject: Re: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) EmptyMon Oct 13, 2008 2:56 am

Pulled and inspected all the plugs. they aren't 2k old

Injector tables were checked before uploading to the new PCM.
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AA
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AA


Name : Aaron
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Starts up and dies ( now with Video!!!!) Empty
PostSubject: Re: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) EmptyMon Oct 13, 2008 3:08 am

I once had +16.4 LTFT. It was caused by a combination of a cracked vac line and a faulty AFC device ran inline with the MAF wiring. I think the AFC was causing most of the problem.

Might try disconnecting the MAF sensor and see if anything changes.

_________________
'05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26

'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes

'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'70 Ninety-Eight Holiday Coupe 455cid • 116k miles
^^^ SOLD ^^^ frown
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http://www.cardomain.com/ride/657082/4
oldsman105
Junkie
oldsman105


Name : Enrique Patino
Age : 39
Location : Queens, New York City
Joined : 2007-01-24
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Merit : 10

Starts up and dies ( now with Video!!!!) Empty
PostSubject: Re: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) EmptySat Oct 18, 2008 1:39 pm

I disconnected the MAF sensor. No change

video to show what it does.

Starts up and dies ( now with Video!!!!) Th_MVI_2070
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Steve98
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Steve98


Name : Steve
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Starts up and dies ( now with Video!!!!) Empty
PostSubject: Re: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) EmptySat Oct 18, 2008 7:23 pm

I wish I was knowledgeable enough to help diagnose this. I did look around the Internet for other people who have had the same issue. Here is something I found on a Ford site. Maybe it will help:

"Truthfully there are many things that can be wrong. You need to narrow it down, because you are either loosing fuel supply, fuel injector pulse, or ignition spark. You need to make it act up, and check for spark. If you have spark, you know it is fuel. If you have no spark, you know it is ignition. If it is spark, you may have a faulty ignition module, pickup coil(stator), or ignition coil. If it is fuel, you may have a faulty fuel pump, PCM, PCM relay, fuel pump relay, or I have even seen a bad PCM ground at the battery cause this. The PCM ground wire is the small ground wire coming off of the battery ground. I hope this helps, but I can say that the most common problems with this car are: Number 1-fuel pump, Number 2- ignition module, coil, and stator, and Number 3- PCM ground wire."
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palermocorey90
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palermocorey90


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Starts up and dies ( now with Video!!!!) Empty
PostSubject: Re: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) EmptySat Oct 18, 2008 8:28 pm

i honestly just re place all the vacumm lines, and see if it does anything at all
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oldsman105
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oldsman105


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Starts up and dies ( now with Video!!!!) Empty
PostSubject: Re: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) EmptySun Oct 19, 2008 2:04 pm

I replaced vaccum lines 6 months ago. checked them all again . No leaks.


I will check the PCM ground on monday thanks steve98
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deekster_caddy
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Starts up and dies ( now with Video!!!!) Empty
PostSubject: Re: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) EmptySun Oct 19, 2008 8:02 pm

Double check the wiring to the crank and cam sensors?
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albertj
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Starts up and dies ( now with Video!!!!) Empty
PostSubject: Re: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) EmptySun Oct 19, 2008 10:10 pm

if your riv had, say, 150,000 miles or more then replacing the crank & cam sensors is a good bet.

Put it to you this way - if you're reading this, you have 150,000 or more miles (NOT Km) and you have not had to replace your crank sensor, let us know...

Albertj
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oldsman105
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oldsman105


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Starts up and dies ( now with Video!!!!) Empty
PostSubject: Re: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) EmptySun Oct 19, 2008 10:35 pm

deekster_caddy wrote:
Double check the wiring to the crank and cam sensors?


Yep checked it when I replaced the cam and crank sensors.
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turtleman
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Starts up and dies ( now with Video!!!!) Empty
PostSubject: Re: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) EmptySun Oct 19, 2008 11:14 pm

hook up a scanner that can show a live datastream for the cam and crank sensor and see if they produce good signals
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albertj
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Starts up and dies ( now with Video!!!!) Empty
PostSubject: Re: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) EmptySun Oct 19, 2008 11:46 pm

maybe you need to put the old PCM back on, or get a used known good one.

I apologize for my crank / cam sensor post. Re-read the first one, says you replaced it already. THere is a chance it is bad new but if you bought a decent brand that's not likely.

Albertj
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oldsman105
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Starts up and dies ( now with Video!!!!) Empty
PostSubject: To the point...   Starts up and dies ( now with Video!!!!) EmptyTue Nov 11, 2008 3:34 pm

My Riveria is dead.


I am not going to type all the details if anyone is interested read the thread here

http://www.bonnevillepro.com/forums/viewtopic.php?f=28&t=5901


Thats why i haven't been on much latley
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deekster_caddy
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Starts up and dies ( now with Video!!!!) Empty
PostSubject: Re: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) EmptyTue Nov 11, 2008 4:02 pm

cry
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Starts up and dies ( now with Video!!!!) Empty
PostSubject: Re: Starts up and dies ( now with Video!!!!)   Starts up and dies ( now with Video!!!!) Empty

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