i keep getting a Fuel supply system code.. its a b18a1 in a 91 si. any suggestions??

 

^

 

which ecu?

 

Trying cleaning the grounding points in your engine bay. Especially the one on the thermostat, it the main ground for most of your sensors and the ECU.

 

Does that really work? I thought it was a code you just had to tune out.

 

Sometimes, I had that annoying code 43 in my N/A LS powered 88 HF.....check/replaced every damn thing. It went away went I started using my Zdyne.....

I know my car idle horribly until I cleaned that ground by the thermostat, then it purred like a kitten