fuel problem
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fuel problem
Hey there, I have a 95 with the 2.5 in it. a few days ago i was driving and the car just died. first i thought it was the fuel pump, replaced that, still doesn't start. Then i noticed i had no spark on the plugs, so i replaced the distributor and the cap/rotor with it, now i have spark on the plugs. turns over, still doesn't start. i replaced the TPS sensor, still doesn't help. I am getting gas to the motor, fuel filter is not clogged, i took the fuel pressure regulator off to see if gas was coming down the fuel rail, and it is...poors out of that hole when i crank it over. if i poor gas into the intake, i can make the car run for a bit, but once that gas is gone, it dies. could there be something wrong with the fuel regulator? the return line is dry...no gas goes back into that from the regulator.. once i replaced the fuel pump did something go wrong with the pressure.. im at a loss..got spark and fuel at the engine...no idea what to do now..
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From: Ohio
http://www.asashop.org/autoinc/april2003/techtips.cfm
http://minimopar.knizefamily.net/ecu/asd_re.html
Bad ASD Relay Symptoms
Usually starts by stalling while driving, progresses into not starting at all, often it will start after several attempts. Engine will have no spark, and you will not hear the fuel pump run when the key is turned on, therefore, no fuel pressure.
These same symptoms have been noticed if a Fuel Pump Relay goes bad or during a computer failure. The Fuel pump relay could cause a loss of spark.
What to check
First of all when you first turn the car on does the Check engine light for a couple seconds? It should as part of the self test when you turn the key on. If it does not then i may be a defective computer, or a burnt out bulb, if the bulb is burnt then you may have a code that you don't even know about. So check that out first.
If your car is a 95-97 perform the key dance. See link for instructions
http://www.2gnt.com/www/files/pcmcode.htm
If you have a 98+ you will need to go someplace such as Autozone, and have them do a free code check. A relay problem usually will not show a code, but if you get a code there is a good chance whatever the code is indicating is causeing your problem.
After the car has sat for a couple minutes with the key off, Turn the key to the ON position, but not far enough to engage the starter. Under normal conditions you will hear the fuel pump run for 2 seconds, to build pressure in the system. The fuel pump is located under the back seat and should be audible from inside the car, or get a friend to stand beside the rear of the car and listen for it.
Check for spark, pull one of the spark pug wire of a plug and insert the metal end of a screwdriver into the end of the wire. Lay the wire and screwdriver onto the metal part of the engine and have someone crank the engine. (dont touch the screwdriver while the engine is cranking or youll be screaming obscenities)
If you see spark and hear the fuel pump than your ASD and Fuel Pump Relays are both good. If you see spark and have no fuel pump noise then i could be the fuel pump relay (or the pump). If the car is experiencing intermittent periods of not starting, then you will need to try this several times. It is possible that the one time you perform these checks, could be the one time the car will start without trouble.
Solutions
The ASD relay is mounted under the hood on the drivers side of the firewall. near the brake fluid master cylinder
Some cars will have 2, 3, or 4 relays in this position, depending on which transmission you have. The Fuel pump Relay is always on the left (passengers side) with the ASD relay beside it. Only Automatic trans cars have the EATX relay, and 95 models have a fourth relay of unknown function.
To replace the relays you have 2 options.
1. Go to the dealer and order a new one. I believe someone payed $20+ at the dealer.
2. Go to your local autoparts store or Radio Shack and buy a 30 amp Bosch style relay. This relay will plug right into your harness and is identical to the original expect it will not clip to the mounting bracket like the original. You can usually disassemble your original and new relays and reassemble the new relay “guts†into the original factory housing. This way it will mount to the bracket.
If this does not solve the problem you could be having computer problems, there are several outputs you can check on the computer, before pricing and looking for a new one, so if you are still having difficulties post again
Have you replaced the CPS???
http://minimopar.knizefamily.net/ecu/asd_re.html
Bad ASD Relay Symptoms
Usually starts by stalling while driving, progresses into not starting at all, often it will start after several attempts. Engine will have no spark, and you will not hear the fuel pump run when the key is turned on, therefore, no fuel pressure.
These same symptoms have been noticed if a Fuel Pump Relay goes bad or during a computer failure. The Fuel pump relay could cause a loss of spark.
What to check
First of all when you first turn the car on does the Check engine light for a couple seconds? It should as part of the self test when you turn the key on. If it does not then i may be a defective computer, or a burnt out bulb, if the bulb is burnt then you may have a code that you don't even know about. So check that out first.
If your car is a 95-97 perform the key dance. See link for instructions
http://www.2gnt.com/www/files/pcmcode.htm
If you have a 98+ you will need to go someplace such as Autozone, and have them do a free code check. A relay problem usually will not show a code, but if you get a code there is a good chance whatever the code is indicating is causeing your problem.
After the car has sat for a couple minutes with the key off, Turn the key to the ON position, but not far enough to engage the starter. Under normal conditions you will hear the fuel pump run for 2 seconds, to build pressure in the system. The fuel pump is located under the back seat and should be audible from inside the car, or get a friend to stand beside the rear of the car and listen for it.
Check for spark, pull one of the spark pug wire of a plug and insert the metal end of a screwdriver into the end of the wire. Lay the wire and screwdriver onto the metal part of the engine and have someone crank the engine. (dont touch the screwdriver while the engine is cranking or youll be screaming obscenities)
If you see spark and hear the fuel pump than your ASD and Fuel Pump Relays are both good. If you see spark and have no fuel pump noise then i could be the fuel pump relay (or the pump). If the car is experiencing intermittent periods of not starting, then you will need to try this several times. It is possible that the one time you perform these checks, could be the one time the car will start without trouble.
Solutions
The ASD relay is mounted under the hood on the drivers side of the firewall. near the brake fluid master cylinder
Some cars will have 2, 3, or 4 relays in this position, depending on which transmission you have. The Fuel pump Relay is always on the left (passengers side) with the ASD relay beside it. Only Automatic trans cars have the EATX relay, and 95 models have a fourth relay of unknown function.
To replace the relays you have 2 options.
1. Go to the dealer and order a new one. I believe someone payed $20+ at the dealer.
2. Go to your local autoparts store or Radio Shack and buy a 30 amp Bosch style relay. This relay will plug right into your harness and is identical to the original expect it will not clip to the mounting bracket like the original. You can usually disassemble your original and new relays and reassemble the new relay “guts†into the original factory housing. This way it will mount to the bracket.
If this does not solve the problem you could be having computer problems, there are several outputs you can check on the computer, before pricing and looking for a new one, so if you are still having difficulties post again
Have you replaced the CPS???
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im not with the car right now, i will be with it on friday again, i will try the key dance then. BUT, right now the car has spark and the fuel pump(brand new) runs for about 2 seconds everytime you cycle the key, so the ASD and fuel pump relays should be good, but friday i will replace the asd relay(will let u know how that goes). I have not replaced the CPS, what is that? I dont think it is the pcm, i have power at the cps, and the cam sensor plug, so i dont think it is that...but is there other things i should test for? like i said i got fuel to the engine..
Last edited by stishdr; Mar 16, 2010 at 02:20 PM.
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I have a 95 with a 2.0 and had the same problem.I did the relays, fuel pump and a few other things.I did notice when i was driving mine it did hickup twice and the check engine light blinked.I changed the cam sensor and PCM and have not had a problem since.
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thanks barber...that's what im thinking too, im gonna run a few more tests before i do that, just to make sure, but thanks.
to badvenge...what can i check on the pcm to see if it's bad?? thank you.
to badvenge...what can i check on the pcm to see if it's bad?? thank you.