Wont Stay Started, Won't Run, Going to get Punched. HELP
#1
Wont Stay Started, Won't Run, Going to get Punched. HELP
Hey folks-
new to the forum, and in desperate need of help!
Ive got a 95, NOT SSE or supercharged or anything- plain jane. Here'* the problem:
Ran a few errands one day about a month ago, drove prolly about 30+ miles and everything was fine. Car had been running perfectly. Parked it, and when i went out to start it again, it wouldn't stay running. It would fire up, idle fine (RPMs about normal), then choke, shudder and die. No CES light or anything at this point. After some fiddling, checking battery and everything, it still wouldn't do anything. Then it stopped even idleing for a second, the light came on and the chimes beeped when you took out the key.
Here'* where I am now: fires up, idles for about 2 seconds, spurts and sputters, sometimes backfires a bit, then dies.
I have put in a new MAF sensor, no change. Changed the EGR, no difference. Battery is fine, right charge. Plugs were old, not fouled, changed them to new. Am getting spark to them.
I can't find the right scanner - the OBDII scanners wont work as I have the OBDII plug with OBDI guts. I was told by a BS mechanic that it had to be the MAF, but no workie.
I need help guys - how can I test this, or diagnose this without paying to have it towed to a shop to read the code? Any ideas on what else this could be??
sorry for the long post - but I'm stuck in a shitty spot here. I need my baby back!
Thanks in advance-
Justin
new to the forum, and in desperate need of help!
Ive got a 95, NOT SSE or supercharged or anything- plain jane. Here'* the problem:
Ran a few errands one day about a month ago, drove prolly about 30+ miles and everything was fine. Car had been running perfectly. Parked it, and when i went out to start it again, it wouldn't stay running. It would fire up, idle fine (RPMs about normal), then choke, shudder and die. No CES light or anything at this point. After some fiddling, checking battery and everything, it still wouldn't do anything. Then it stopped even idleing for a second, the light came on and the chimes beeped when you took out the key.
Here'* where I am now: fires up, idles for about 2 seconds, spurts and sputters, sometimes backfires a bit, then dies.
I have put in a new MAF sensor, no change. Changed the EGR, no difference. Battery is fine, right charge. Plugs were old, not fouled, changed them to new. Am getting spark to them.
I can't find the right scanner - the OBDII scanners wont work as I have the OBDII plug with OBDI guts. I was told by a BS mechanic that it had to be the MAF, but no workie.
I need help guys - how can I test this, or diagnose this without paying to have it towed to a shop to read the code? Any ideas on what else this could be??
sorry for the long post - but I'm stuck in a shitty spot here. I need my baby back!
Thanks in advance-
Justin
#2
Retired Senior Admin
Expert Gearhead
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Likes: 0
Received 28 Likes
on
24 Posts
First, you have what'* called OBD1.5 There should be a fair amount of info on that.
First thing you are going to want to check the the fuel pressure. I'm guessing your fuel filter is plugged, or your fuel pump is going. No fuel to injectors, no run.
First thing you are going to want to check the the fuel pressure. I'm guessing your fuel filter is plugged, or your fuel pump is going. No fuel to injectors, no run.
#3
Thanks - I'll double check the fuel pressure. I was told that it was acceptable, but i will check for myself. What'* a good range to be sitting at?
ASSUMING that the fuel pressure is what it should be like I was told, what would be the next thing to check?
Thanks for the reply - im on my last thread with this damn thing.
ASSUMING that the fuel pressure is what it should be like I was told, what would be the next thing to check?
Thanks for the reply - im on my last thread with this damn thing.
#5
Ive heard a bit about the relays under the hood - but haven't gotten any good ideas about how to test, or even which one(*) to check/replace? Any ideas?
Thanks so much for walking me through this...
#6
Senior Member
Posts like a Supercharger
Join Date: Sep 2007
Location: Kansas City Mo
Posts: 178
Likes: 0
Received 0 Likes
on
0 Posts
Well, the only relays I know of that controls the fuel/spark system are on the firewall just behind the strut bar. There are fuses under the drivers side dash that you can check too.
#8
DINOSAURUS BOOSTUS
Expert Gearhead
Morning guys..
Common enough symptoms. If the fuel pressure is over 30 it should be enough to start and keep the car running. Being that it ran, I'd stray from the plugs and wires at this point. Check for spark, if you have it...consider that good enough for now.
Having spark and fuel rules out the fuel pump and crank sensor. Maf sensors can be checked by unplugging them. It'll set a check engine light, but default the computer to run off tables instead of actual airflow.
ECM is a guess I'd head for. There'* a junkyard in my area that sells them for around $20 (which is what a 94/95 is worth in my opinion). Parts stores in my area stock them on the shelf...that says a bit for how flakey those two years were. All you do is swap your chip from your ECM to the new one and if the car straightens out..it was a bad ecm.
Common enough symptoms. If the fuel pressure is over 30 it should be enough to start and keep the car running. Being that it ran, I'd stray from the plugs and wires at this point. Check for spark, if you have it...consider that good enough for now.
Having spark and fuel rules out the fuel pump and crank sensor. Maf sensors can be checked by unplugging them. It'll set a check engine light, but default the computer to run off tables instead of actual airflow.
ECM is a guess I'd head for. There'* a junkyard in my area that sells them for around $20 (which is what a 94/95 is worth in my opinion). Parts stores in my area stock them on the shelf...that says a bit for how flakey those two years were. All you do is swap your chip from your ECM to the new one and if the car straightens out..it was a bad ecm.
#10
Any other ideas?
Thanks so much!
Justin