HomeDashboardFAQSearchRiviera Questions & AnswersWrite-Ups IndexRegisterRelated LinksMemberlistLog in
Share | 
 

 need help car misfiring

View previous topic View next topic Go down 
AuthorMessage
zerg1024
Rookie


Joined : 2007-09-06
Post Count : 12
Merit : 0

PostSubject: need help car misfiring   Fri Jun 27, 2008 6:59 pm

ok so i changed the plugs and wires since the car was misfiring and it still does it i dont know what else it could be. can someone help me out here?
Back to top Go down
Mr.Riviera
Expert
avatar

Name : Matthew
Age : 30
Location : Florida
Joined : 2007-01-17
Post Count : 4333
Merit : 99

PostSubject: Re: need help car misfiring   Fri Jun 27, 2008 7:27 pm

have you cleaned the MAF? how old are the wires? what plugs did you use? what year riv are you working on? engine? (those should be in your signature!) does it only miss under load, or all the time?

_________________
1996 with 244k miles, L324" FWI -> ported N* -> Ported Gen V w/3.0" Pulley, Stage 3 Phenolic I/C, ZZP FMHE, 1.84 RR, Headers and 3" pipe to mufflers, F-body brakes, and lowered on Eibachs.
Back to top Go down
zerg1024
Rookie


Joined : 2007-09-06
Post Count : 12
Merit : 0

PostSubject: Re: need help car misfiring   Fri Jun 27, 2008 7:38 pm

its a 95 non sc. the wires are two days old and i used ngk spark plugs and yes i cleaned the maf. it only does it under load.
Back to top Go down
zerg1024
Rookie


Joined : 2007-09-06
Post Count : 12
Merit : 0

PostSubject: Re: need help car misfiring   Sat Jun 28, 2008 6:59 pm

guess no one can help me out huh?
Back to top Go down
Mr.Riviera
Expert
avatar

Name : Matthew
Age : 30
Location : Florida
Joined : 2007-01-17
Post Count : 4333
Merit : 99

PostSubject: Re: need help car misfiring   Sat Jun 28, 2008 7:09 pm

have you had any SES lights pop up? sorry, but if it's not plugs,wires, or maf, 'm out of suggestions off hand. all i can say is get any codes read if they show up, and do any regular maint items to start ruling things out. (like fuel filter, pcv, air filter, oil change, etc to see if things improve any)

_________________
1996 with 244k miles, L324" FWI -> ported N* -> Ported Gen V w/3.0" Pulley, Stage 3 Phenolic I/C, ZZP FMHE, 1.84 RR, Headers and 3" pipe to mufflers, F-body brakes, and lowered on Eibachs.
Back to top Go down
Mr.Riviera
Expert
avatar

Name : Matthew
Age : 30
Location : Florida
Joined : 2007-01-17
Post Count : 4333
Merit : 99

PostSubject: Re: need help car misfiring   Sat Jun 28, 2008 10:12 pm

could also be a problem with one of your coil packs. try cleaning the plate underneath them.

_________________
1996 with 244k miles, L324" FWI -> ported N* -> Ported Gen V w/3.0" Pulley, Stage 3 Phenolic I/C, ZZP FMHE, 1.84 RR, Headers and 3" pipe to mufflers, F-body brakes, and lowered on Eibachs.
Back to top Go down
zerg1024
Rookie


Joined : 2007-09-06
Post Count : 12
Merit : 0

PostSubject: Re: need help car misfiring   Sat Jun 28, 2008 11:02 pm

yea the check engine light is on i am going to have to pull the codes. we did the oil change and the air filter is new too. could it be because i am missing the wiring harness for the back knock sensor?
Back to top Go down
AA
Administrator
avatar

Name : Aaron
Age : 40
Location : C-bus, Ohio
Joined : 2007-01-13
Post Count : 18293
Merit : 238

PostSubject: Re: need help car misfiring   Sun Jun 29, 2008 5:46 pm

Is the car knocking or misfiring, or both? Need to know those codes.

_________________
'98 SC Riviera 268k 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 180 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


'05 GTO 49k miles 0-60: 4.8s 16.9 avg MPG Nelson Ledges Lap: 1:26
Because fun
Back to top Go down
http://www.cardomain.com/ride/657082/4
zerg1024
Rookie


Joined : 2007-09-06
Post Count : 12
Merit : 0

PostSubject: Re: need help car misfiring   Mon Jun 30, 2008 2:33 pm

it is just misfiring. is there a way to get the codes off without a scan tool?
Back to top Go down
AA
Administrator
avatar

Name : Aaron
Age : 40
Location : C-bus, Ohio
Joined : 2007-01-13
Post Count : 18293
Merit : 238

PostSubject: Re: need help car misfiring   Mon Jun 30, 2008 6:52 pm

You need a scan tool. Some local auto parts stores will read them for you at no charge.

_________________
'98 SC Riviera 268k 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 180 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


'05 GTO 49k miles 0-60: 4.8s 16.9 avg MPG Nelson Ledges Lap: 1:26
Because fun
Back to top Go down
http://www.cardomain.com/ride/657082/4
'96reese
Fanatic


Name : Reese
Age : 34
Location : StL
Joined : 2007-09-20
Post Count : 259
Merit : 4

PostSubject: Re: need help car misfiring   Tue Jul 01, 2008 2:23 am

you will have to take it to a shop to scanned. i dont think part stores will have an obd 1 scan tool to scan your 95. where are you located it? if your close to Stl, mo then i'll scan it for you.
Back to top Go down
BillBoost37
Junkie


Location : Enfield CT
Joined : 2007-11-28
Post Count : 769
Merit : 25

PostSubject: Re: need help car misfiring   Tue Jul 01, 2008 6:32 am

Some parts stores can scan 95's. But it's not as common as OBD2 vehicles.

One way to tell which cylinder is misfiring would be to remove one wire at a time and see which cylinder gives you no difference versus what you have now.

That's the old moldy way w/o a scan tool. Also ensure your wires aren't touching the O2 wiring.
Back to top Go down
 
need help car misfiring
View previous topic View next topic Back to top 
Page 1 of 1
 Similar topics
-
» Help!! Misfiring Mini!
» Misfiring at low rpms when running on LPG.
» Misfiring on one cylinder on my 14hp Briggs Vanguard Vtwin.
» Car just started misfiring out of nowhere and PO121 code
» Cost of Spark Plugs

Permissions in this forum:You cannot reply to topics in this forum
Riviera Performance ::   N/A 3800 Tech :: Series II N/A Engine, Transmission, PCM-
Jump to: