Spencer Yeager

hey i have an 88 tbird its the 5.0 so when i start the car it runs fine then a few minuts later it begins to misfire has really bad idle smells like fuel then after a mute or two of that it returns back to normal any ideas?

Spencer Yeager

anyone have any ideas

mattdel

Sounds like maybe a bad coolant temp sensor. The engine adjusts fuel curves based on the temp readings it provides.

Spencer Yeager

is that sensor on the lower intake?

88 orangepeel notch

Yes, its the one on passenger side.

mjr46

before blindly slapping parts, run a koeo/koer test and check for codes