What should I do next. What do I need to replace. I was doing a steady 50 when it came on and when I decided to drive home it didn't come back on but the ecu is still flashing. I drive a 90 si with a 91 ecu only engine mods are intake and full 2 1/4 exhaust and some bs muffler. The cars been running fine with the exception of hard cold starts and some popping noises while idling and the occaisional backfire during deceleration. Thanks for your help.

 

thats a TPS sensor code (Trothle Position Sensor)
check ur TPS sensor plug didnt snap out
if its conected, then sensor its bad
replace the whole TB its easier and cheaper at the long run


[Modified by JDM EF9, 3:54 PM 1/26/2003]