surging idle, gas pedal lag, and stall

[1994Vib.RedGT]

I was at the strip tonight and before I went for my third run my idle started suring from idle to 1500 to dead, and it did it a few times, having to restart my car 4 times before my run. And when I would hit the gas, there was a horrible lag before it would rev up, and the same thing happened when i launched, it lagged like hell and bogged down. what the hell is all this????

 

[CManT1914]

Heat maybe. One of the times I went out to the track last summer, I let my brother make a pass (BIG NO-NO!!) and it was running so hot after that one, that the idle would surge real bad, and it would have trouble revving. After a little cool-down period, it was back to normal.

 

[1994Vib.RedGT]

it has done the lag thing before but very briefly, without the other symptoms that happened at the track though.

 

[1994Vib.RedGT]

bump

 

[Rootus]

I'd just start with the easy stuff. Pull codes and check electrical connectors to rule out a sensor problem. And then verify spark (wires, correct timing) and fuel. What & when was the last change you made to anything under the hood?

It's probably something simple. Diagnosing over the 'net, however, is hard.

Dave

 

[1994Vib.RedGT]

well the other month I had a tune up, new plugs, cap, and rotor, and a new water pump, timing chain, and timing cover put in. so I dont think that is an issue, and I do not have a code scanner.

 

[dstanggt50]

Code scanners are pretty cheap, good investment, if you got a tune up, I didn't see but you could try a new fuel filter, I would try to run codes, chk for any vacuum leaks, exh leaks, maybe clean the maf.