2001 gp 3800 non sc with 116000 also has k&n filter
this car belongs to my buddy who is in a wheelchair so i am helping him fix it.
the problem started as a lose of power while under load he drove me around to show me the problem and there was a noticeable sluggishness to the car it did not rev like a slipping trans and before we left i started and reved the motor it sounded fine.
there are no codes and the only engine light is an srs.
That night i filled all the fluids and added chevron to a full tank of gas.
we cleaned the air filter an oiled it and placed it back on.
i was going to test drive it the following day myself as to get a better feel as to what was going on but he drove it to a rewards dinner and broke down on the way home, and it now is in my driveway.
it would start and stall within a few seconds , i have read multiple threads with like symptoms for both low power and start stall and started to look into what was going on.
i have cleaned the mas and inspected wires to other sensors i did find oil in the air intake tube and the mas was dirty.
after cleaning it still would stall after start
i then was able to keep it running with some pedal but noticed that it did not seem to have any exhaust sound from the rear , it used to sound very throaty when he first got the car so i thought that the cat was clogged and cut the pipe just in front of it with hopes of being able to drive it to a shop for a new cat.
but now it still stalls with the mas plugged in and with it unplugged it will start and rev on its own hitting the rev limiter untill i turn it off.
i will be getting a battery charger,fuel pressure gauge ,and code reader tonight to help trouble shoot but any help or direction on where to start would be great.
looks like another lost weekend.
thanks
