93' running rough
#1
Senior Member
True Car Nut
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93' running rough
Well, I haven't driven the 93' for a while but my dad who is buying the car said it was running like ***t and will not buy it when its this way. So, I drove it around and it drove very bad. Misfireing, backfireing, and no SES light. Now I reved it up in park and it seemed to rev freely. I put in plugs before the Chicago trip in Aug 04', and new wires in Jul 03'. Any ideas?
#2
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Join Date: Sep 2004
Location: Canton, Ga
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I would start with the basics. Fuel, fire, and air.
Check the fuel pressure if possible. It may just be a fuel filter.
The backfiring sounds like a timing issue though. Maybe a cam sensor.
To my knowledge thats all that controls the timing other than the PCM.
Also, check the voltages on the TPS . It should be like .4 at idle and over 4 at WOT.
JLathem
Check the fuel pressure if possible. It may just be a fuel filter.
The backfiring sounds like a timing issue though. Maybe a cam sensor.
To my knowledge thats all that controls the timing other than the PCM.
Also, check the voltages on the TPS . It should be like .4 at idle and over 4 at WOT.
JLathem
#3
Originally Posted by jlathem
I would start with the basics. Fuel, fire, and air.
Check the fuel pressure if possible. It may just be a fuel filter.
The backfiring sounds like a timing issue though. Maybe a cam sensor.
To my knowledge thats all that controls the timing other than the PCM.
Also, check the voltages on the TPS . It should be like .4 at idle and over 4 at WOT.
JLathem
Check the fuel pressure if possible. It may just be a fuel filter.
The backfiring sounds like a timing issue though. Maybe a cam sensor.
To my knowledge thats all that controls the timing other than the PCM.
Also, check the voltages on the TPS . It should be like .4 at idle and over 4 at WOT.
JLathem
I would start with the fuel filter. Cheap insurance. Sounds like the engine is fuel starved!
#4
Senior Member
True Car Nut
Thread Starter
It was the coil packs. Two were burned out. That miss under load that i've had all along may be gone now. Right in time to sell it to my dad.
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