My 87 IROC with a 305 TPI, 700R4 96K miles does this hesitation thing during slight acceleration. At about 1/4- 1/2 throttle, it sounds like it's missing, but when cruising or flooring it, it sounds fine. I replaced the spark plugs and cap and rotor, changed the fuel filter, and unbelievably, it's worse! The car is only driven about once a month; I don't know if that makes a difference. Any ideas?
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<font face="Verdana, Arial" size="2">Originally posted by ColinOpseth:
changing vacuum tubing..</font>
Every mans worst nightmare.<font face="Verdana, Arial" size="2">Originally posted by ColinOpseth:
changing vacuum tubing..</font>
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1985 Camaro SC - 2.8L, auto.
http://www.xenodrgn.f2s.com/Frontright.jpg
Supreme Member
The stock tpi EGR ain't crap until you have changed or attempted to reach one on a superram intake.
Brendan
Brendan
Supreme Member
What about your wires? It sounds like a cut/burnt wire.
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"Question with boldness even the existence of a God; because, if there be one, he must more approve of the homage of reason, than that of blind-folded fear."
-Thomas Jefferson
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"Question with boldness even the existence of a God; because, if there be one, he must more approve of the homage of reason, than that of blind-folded fear."
-Thomas Jefferson
Quote:
<font face="Verdana, Arial" size="2">Originally posted by Red Devil:
What about your wires? It sounds like a cut/burnt wire.
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if it was wires it would always run bad..<font face="Verdana, Arial" size="2">Originally posted by Red Devil:
What about your wires? It sounds like a cut/burnt wire.
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Webmaster: www.IROC-Z.org
Quote:
<font face="Verdana, Arial" size="2">Originally posted by Xenodrgn:
Every mans worst nightmare.
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it's not 'too' bad..<font face="Verdana, Arial" size="2">Originally posted by Xenodrgn:
Every mans worst nightmare.
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it took me about 2-3 hours to do it, but i had my Dad hold the wire in the OEM shape while I heated it with a match so that all of the bends look stock...
you really have just 2 main on the pass rear of the intake, the one going from behind the EGR up to the front of the throttlebody and then the one from the TB over to the drivers side..
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Webmaster: www.IROC-Z.org
Supreme Member
Quote:
<font face="Verdana, Arial" size="2">Originally posted by ColinOpseth:
if it was wires it would always run bad..
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CO, I have fried too many wires on my headers, when I stomp on the gas you can't tell there is a miss, however in the lower RPM band, you will notice a miss or slight hesitation. It would be obvious only is seriously damaged or completely cut.<font face="Verdana, Arial" size="2">Originally posted by ColinOpseth:
if it was wires it would always run bad..
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"Question with boldness even the existence of a God; because, if there be one, he must more approve of the homage of reason, than that of blind-folded fear."
-Thomas Jefferson
I forgot to mention, the car only gets about 170 miles to a tank of gas, and there was black carbon buildup on the plugs. I also changed the O2 sensor.
It may be an ignition pickup coil. Sometimes they get an intermittant open... Do you have a problem of frequently changing modules?