check engine light

[95RIVER]

light comes on and goes off, the shop said it was a cam position sensor but them put a new one in and it didn't help, so now they want to put in a crank sensor.....any ideas????

[95RIVER]

also the idel is kinda fluttering.

[jadmonkey]

Sounds many like the EGR valve... I had to have mine replaced after about 130,000 miles. That will cause the light to go on off... Should have an error code in memory then... Also... I was told by my dealership to replace my cam/crank sensor when it was actually the EGR valve... You should remove it and see if there is a lot of carbon built up. I do believe the crank and cam sensor both connect to the ignition mod. then that goes to the PCM.... a crank or cam sensor might cause the RPM gage to bounce a little... In 4 years I've done it all to my car, new engine, rebuilt trans... it's like a new car...

[95RIVER]

now they are telling me nothing is wrong with the car and the light is because a short in one of the wires>? sounds like bs but iv had it at a gm dealership 4 times now. I can't sell it like this.

[michelq]

Originally Posted by 95RIVER

now they are telling me nothing is wrong with the car and the light is because a short in one of the wires>? sounds like bs but iv had it at a gm dealership 4 times now. I can't sell it like this.

Can you tell me the code #maybe I can help

[95RIVER]

ok thanks, brackets are quotes from the work orders, (code po342 cam se nser problem) they then (put a new cam sensor still ses light on, measure voltage @ cam connecter all good, possiable int condition between cam senser & pcm ne- ed)

3rd time

(check for ses light on, found history code of 0341 cam/crank error, replace crank senser no codes returned) but bye the time i went to pick up my car the codes were returned.

Thanks for the help.

[jadmonkey]

If they say it's a shorted wire, why didn't they fix it?

[95RIVER]

Because they say they can't find the wire that it screwed up and that it will take hours to trace all the wiring.

[michelq]

Originally Posted by 95RIVER

Because they say they can't find the wire that it screwed up and that it will take hours to trace all the wiring.

From what i know most of times it is your PCM ,but you can not be sure until you check it. and make sure that is the problem.
As far code 341 it could be is your timming chain or cam magnet on cam pully.but never know til you check it

[95RIVER]

isn't 42 The EST signal did not change when the ECM applied bypass voltage to the ignition module ?? what the heck dose that mean because they told me it was a cam sensor error.

[jadmonkey]

Well the information on that wire.. if it's the check engine light right... that's the Brown/White wire coming out of the gage cluster. It's on the 16pin connector, "A3" on the connector, from what I have read that wire goes right to the PCM... And on the PCM it's on the white connector "D13".

[95RIVER]

Originally Posted by jadmonkey

Well the information on that wire.. if it's the check engine light right... that's the Brown/White wire coming out of the gage cluster. It's on the 16pin connector, "A3" on the connector, from what I have read that wire goes right to the PCM... And on the PCM it's on the white connector "D13".

were is my pcm? and are you sayign i should cvheck this wire and could this make the check engine light go on for a 42 error?

[95RIVER]

http://www.troublecodes.net/articles...ndrstd42.shtml read this and tell me what you think!

[jadmonkey]

The PCM is right behind the glove box... the black panel above your feet on the pass. side can be removed and you can access the connectors there... I think I have been wrong... are you talking about a wire from from check engine light to PCM or A the wires from the Cam sensor?

[95RIVER]

from the cam sensor