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I did a tune up on this vehicle already and found a broken wire on the coil which i replaced. i did complete tune with wires,plugs,cap rotor. When under load, it acts like it surges or doesnt quite take the gas..but i wouldnt really say its a misfire more
[quote]Quoted From turning_wrenches: _x000D_
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I did a tune up on this vehicle already and found a broken wire on the coil which i replaced. i did complete tune with wires,plugs,cap rotor. When under load, it acts like it surges or doesnt quite take the[quote]Quoted From moparfan: _x000D_
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ok great. we can asume that part of the ignition is ok. any CEL codes? did it run better with the fuel pressure at 50? you would need to cover the vacum line with your finger while you have it unplugged. if i reme[quote]Quoted From turning_wrenches: _x000D_
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I have no codes. I didnt really pay attention to if it ran better at 50..the spec is 40-50 with the key on,engine off..fuel pressure seemed a little on the low side but it was steady and maintaining it withQuoted From turning_wrenches: _x000D_
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the clicking in the idle control has me wondering why its doing that..like compensating for some other problem ._x000D_
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that is just what i was thinking or the IAC is the issue.You can try tapping on the IACV to see if that will make any difference in idle. Im not 100% sure if a bi-directional scan tool will be able to energize the IACV with it been a 95 model year which was the cross over from OBD1 to OBD2._x000D_
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Also here is EricI don’t know if the bubbles in the fuel is significant or not but your readings for fuel pressure do seem low although I don’t know the spec.
The fact that you have narrowed it down to temp related suggests to me at least the coolant temp sensor.
[quote]Quoted From EricTheCarGuy:_x000D_
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I don’t know if the bubbles in the fuel is significant or not but your readings for fuel pressure do seem low although I don’t know the spec. I’m also not sure if low fuel pressure would cause the surge conditioForgot to mention that i did install a fuel filter and i checked live data on the temp sensor it read 199 degrees at the time and climbing to 204.. also the o2 sensor was switching constantl from lean to rich.. so it seemed to be working ok there..I dont
Do you have access to a scope to see the cam and crank wave forms?_x000D_
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Any tools to stress test the ignition system?_x000D_
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Also, i am not a big fan on putting nothing but AC Delco plugs in a GM. Each to there own though. C8-)I have no tools to stress test the ignition system..Yea i would have rather put ac plugs in it also..but the boss had brighter ideas..Well an update..i did try a ignition module and the car did seem to run great for a long time..till it got really hot the
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