hesitation at cold startup, once hot runs awesome.

[anchew01]

so i bought a 90 laser rst, had several issues with it, all plug wires crossed, bad knock sensor, thought the iac was bad, blah blah blah. so i fixed the check engine light due to bad knock sensor, replaced plugs, fuel filter,retimed and car runs awesome when warm, if i let it sit overnight, car starts and idles fine but if i try to drive it normal like if im in 2nd gear doin about 20-30 and hold the throttle still, it starts to hesitate like some is killing spark and when it does that the turbo gauge goes all the way to 14. one the car is warm its a completly different story, car runs awesome, very quick. this is the only dilemma i have,help is greatly appriciated.

 

[1SickAuto]

check the coolant temp sensor. the search function at the top of the page helps too

 

[anchew01]

ill check that, also i noticed the car doesnt like to rev at all in the morning, if i have the hood open and i start the car in the morning and try to rev it, it only revs to about 4500 and hesitates and misses really bad,like i said,once its warm its fine

 

[1SickAuto]

its getting toooooooo much fuel due to coolant temp being unplugged or bad. i bet thats ## problem

 

[anchew01]

so i replaced the coolant temp sensor, car still has the same problem, checked wiring and tested good, dont know what the deal is. all i know is that is with like brly even pushing the gas, the boost shoots all the way to 14 and hardly moves.

 

[Nooblover]

try lightly misting with water around your valve cover and ## spark plug wires. turn the lights off and and rev her up a bit, you will see the spark jump some were. hope that helps if you are miss firing. Im thinking when its cold you have condensation in and around your engine bay and when your car is warm its all evaporated.

 

[Two4 Stroke Her]

have you checked the plugs? or your ignition module could be bad or have a bad ground.