The 8th Gen Riviera Resource
 
HomeDashboardFAQSearchRiviera Questions & AnswersWrite-Ups IndexRegisterRelated LinksMemberlistLog in
Share | 
 

 FAQ: P0341 Camshaft Position Sensor (Cam Sensor / Timing Chain)

Go down 
Go to page : Previous  1, 2, 3, 4, 5, 6, 7, 8, 9, 10
AuthorMessage
al_roethlisberger
Junkie
avatar

Name : Al Roethlisberger
Age : 49
Location : Sanford, NC
Joined : 2013-03-12
Post Count : 930
Merit : 21

PostSubject: Re: FAQ: P0341 Camshaft Position Sensor (Cam Sensor / Timing Chain)   Sun Apr 15, 2018 12:57 am

Quote :
I WROTE YESTERDAY: Well, I can confirm that the infamous black wire exists in the 1995 Series 1 SC.  It is located in the lower left corner of the firewall harness block, and is black with white stripe.  It terminates in the camshaft position sensor connector's center pin.

However, it appears that my black wire is not broken.  I was able to run a continuity test and impedance test from the center pin of the camshaft position sensor connector to the "black wire" pin in the firewall harness block with no drops even with moving the harness/wire around extensively.  So unfortunately so far I am not finding that the wire is the problem.

But I'm still getting the P0341 DTC so that only leave a few options since I've already replaced the camshaft position sensor.

I'll have to check if the inductive magnet is still in place or not.

And I'll need to check the continuity of the wiring from the firewall to the PCM.  I may even swap out the PCM itself since I have a spare.

BTW, does anyone know what the other two wires in the camshaft position sensor do and where they run? There are three wires in the sensor connector. These two wires are on either side of the center "black wire" pin.



Just ignore what I wrote above.  I think I misidentified a black/white wire as the infamous "black wire" and so my testing is invalidated.  The black/white wire did trace via continuity to the cam sensor connector, but that may be ground versus signal.

After consulting my FSMs for the 1995 Riviera, I think I've got some more tracing to do.

I did swap out to my spare PCM, but the result was the same.  So the PCM doesn't seem to be at fault.

The FSM starts troubleshooting with pin RB9 on the PCM red harness which should read 5V with the key on, and all three (blue, white, red) PCM harnesses disconnected.  My pin RB9 is not reading 5V, so the broken black wire issue is still a possibility.

Unfortunately a huge thunderstorm blew in just as I figured this out, and now we're approaching sunset, so it doesn't look like I'll be doing any more troubleshooting today.

I'll update as I learn more.


Last edited by al_roethlisberger on Sun Apr 15, 2018 6:37 pm; edited 2 times in total
Back to top Go down
LARRY70GS
Aficionado
avatar

Name : Larry
Age : 61
Location : Oakland Gardens, NY
Joined : 2007-01-23
Post Count : 1527
Merit : 105

PostSubject: Re: FAQ: P0341 Camshaft Position Sensor (Cam Sensor / Timing Chain)   Sun Apr 15, 2018 8:14 am


_________________
98 Riviera SC3800  All stock except gutted air box.
1970 Buick GS455 Stage1, TSP built 470BBB, 602HP/589TQ
Best MPH, 116.06 MPH, Best ET, 11.54
https://www.youtube.com/watch?v=UHCda-t_Jls
https://www.youtube.com/watch?v=sfT2tEO4XcU
Back to top Go down
al_roethlisberger
Junkie
avatar

Name : Al Roethlisberger
Age : 49
Location : Sanford, NC
Joined : 2013-03-12
Post Count : 930
Merit : 21

PostSubject: Re: FAQ: P0341 Camshaft Position Sensor (Cam Sensor / Timing Chain)   Sun Apr 15, 2018 10:30 am

LARRY70GS wrote:
Look in the FSM.

https://www.ebay.com/itm/95-1995-Oldsmobile-Aurora-and-Buick-Riviera-service-shop-manual-used-Two-volumes/152572239100?hash=item2386039cfc:g:ZvgAAOSwlndZMzbU&vxp=mtr

Yeah, that's on my list to do today as well. I have the FSMs for the 1995, but thought I'd just ask.

My assumption is that the other two wires provide power and ground, but will see.

Back to top Go down
 
FAQ: P0341 Camshaft Position Sensor (Cam Sensor / Timing Chain)
Back to top 
Page 10 of 10Go to page : Previous  1, 2, 3, 4, 5, 6, 7, 8, 9, 10

Permissions in this forum:You cannot reply to topics in this forum
Riviera Performance ::   Supercharged 3800 Tech :: Series II Engine & Transmission-
Jump to: