2002 Pontiac Montana Repair Question
My 2002 Pontiac Montana sometimes won't start?
Are there aney pcm codes. If yes what are thay. We need to know if we are having a spark or fuel. Problem. Check fuel pressure check spark @ the plug on 2 wires. Let me know how you make out.
There are no codes, fuel pressure is 50 psi, checked spark on the front three plugs and I have spark on all three.
Is this what you have when its not starting ?
When it is not running I still have spark and 50 psi fuel pressure.
are injectors working when no start happens?
don't know how do I test.
You mentioned there is inject or pulse but not if there is spark on the front 3 when not starting. Check this and get back to me
noid light is usual test. you can buy or make your own. someone mentioned harbor freight has set for $10
Don't understand what you mean djcl. fixitmr could a bad signal or short for the pcm be intermitant. I'm thinking it might be the injectors because the last time I had a no start I tried to get it started until the battery died and when I took the front plugs out they were dry as mummy dust. You would think after trying for so long they would be wet. Do you agree?
yes, i would expect them to show wet condition. intermittant no signal/short sounds right.