QuestionQUESTION: I am working on my mother-in-law's 95 Cirrus with a 2.5 V-6. The issue before I got it was that it stalled and would not start. Someone else had there hands in it first so I had to put it back together just to figure out where to start.
First off, the spark plug holes were filled with oil. I cleaned the holes, replaced the plugs, tested the resistance in the wires, checked the compression while i could get to the rear plugs, replaced the intake gaskets and the valve cover gasket set. I ended up with no spark. I then removed the distributor and tested the coil. It was bad so I replaced the distributor.
Now it starts and runs but has very little power. I disconnected the exhaust to see if it may be a clogged CAT and there was no difference in power.
I pulled the codes through the dash and got 12, 35, 32 and 23 in that order. The battery was dead so I ignored 12. The fans come on when you turn on the key and don't shut off until you turn the key off so I think there may be an issue there maybe with a relay but I moved on figuring that was not the power issue. 23 says Air Intake voltage but I really don't know where to check or how for that. Again i moved on figuring that isn't my power issue either (although I could obviously be wrong).
Finally I removed the EGR and found the small vacuum line at the top of it to be completely clogged and the plunger to be sticky. I cleaned it out and still need to reinstall. I ran out of time last night. If I reinstall and still have the lack of power issue I figured I would check the fuel pressure. I haven't been able to find two of the same answers as to what the pressure is supposed to be. I've seen between 14.5 and 50 psi on-line. I do not have a service manual nor can I seem to find one other than a very mediocre one on Autozone.
Any help or advice you can offer would be greatly appreciated. I don't mind replacing what I need, I already bought the other parts mentioned, I just don't want to keep buying parts unless I can test them out and prove them to be bad first. My mother-in-law has no money to buy a new car so I am saddled with the repairs.
Thanks again. I hope to hear from you soon.
Dave
ANSWER: Hi Dave,
The egr clean out may be the answer, so see whether it is.
The intake air sensor is located on the back side of the intake manifold, at the midline. When cool it should read 9-11,000 ohms, and when at full temp (212F) it should read 600-800 ohms across its terminals. The wires connect to the pcm:
The black/red to pin 37 of the pcm, the black/light blue to pin 43.
There are two fan relays at the very rear of the power box under hood (in the lower area that is hidden by the air intake duct) so you can try switching those around to find out which one is possibly stuck 'on'.
The fuel pressure should be 47-50 psi.
You are doing a great job, so let me know how this works out.
Roland
---------- FOLLOW-UP ----------
QUESTION: THANKS FOR THE FAST RESPONSE! I tried to research as much as I could before I began as to not waste others' time.
I will go ahead and put everything back together and see what happens. Where is the best spot to check the pressure?
I will definitely let you know how I make out. This is my first time to this site. I think I will be back! What a great resource!
Thanks again,
Dave
AnswerThe manual show to disconnect the chassis fuel line to engine connector at the engine and insert an adapter hose between the two which has a gauge port. Then activate the fuel pump using the scanner if available, or jump between the two in-board pins of the relay socket.
PS It you would care to 'rate' my answer that would be appreciated.
