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skipping, surging, sporatic idle

Old 02-26-2015, 03:35 PM
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Car: 88 gta
Engine: 305
Transmission: T5
Axle/Gears: 3.42
skipping, surging, sporatic idle

So now I have this peculiar issue...
I have a skipping no power issue... So here is all that I've noticed:

-Startup with intermittent skip..
-after running for a few minutes skip always happens.
-So bad that the idle fluctuates and sounds like its cammed..but with a very noticable skip.
-even with acceleration the engine lags, has no power, skips profusely...
-However all of sudden, if I can manage to get the tach above 3k, all power comes back with a fury, no skip and ***** to the wall accel.

So using an old school method;
I pulled the plug wires off the cap, while the engine was running...6 wires gave NO change in skip, 1 wire made it worse, and 2 wires shocked me.

So what is there to check next? And what else might I be overlooking?

Engine codes pulled were 13, 22, 45. However this codes could be as much a 1 1/2yr old. So I don't know what one is most recent.
Old 02-26-2015, 04:43 PM
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Car: 88GTA
Engine: 5.7TPI
Transmission: Auto
Axle/Gears: 3.27
Re: skipping, surging, sporatic idle

I personally would put on a new cap, rotor,and wires. Throw some plugs at it too.

Ya might be surprised!!!!

Then disconnect battery and erase the codes and go from there

Last edited by Bob88GTA; 02-26-2015 at 04:44 PM. Reason: more info
Old 02-26-2015, 05:40 PM
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Car: 88 gta
Engine: 305
Transmission: T5
Axle/Gears: 3.42
Re: skipping, surging, sporatic idle

Plugs wires cap and rotor were replaced about 5k ago. Just a routine I follow with every car I own.

Erasing codes is defiantely something I gotta do.
Old 02-28-2015, 12:56 PM
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Re: skipping, surging, sporatic idle

depending on how you pulled the plug wires, with you getting shocked......may mean you need new wires.
Old 04-03-2015, 09:11 AM
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Car: 88 gta
Engine: 305
Transmission: T5
Axle/Gears: 3.42
Re: skipping, surging, sporatic idle

I redid the 02 sensor and wiring..It looked like it was shorting out.
I erased the codes and codes 22/45 came back.

I rechecked the TPS its still set at .56 and no dead spots...

So now I "***"ume I should check for vac leaks?

I say assume as both indicate the possibility of a bad computer?
I also have an exhaust leak at the manifold, so I assume this can alter things also?
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