Bobert

Hello everyone. My car is currently embarrassing to drive. It sputters, and drives/decelerates extremely jerky.

I ran a KOEO with the actual machine decoder i borrowed from a friend, here are the random codes i got.

96 - Fuel Pump CKT

91 - Left EGO Lean

63 - TPS Low

41 - EGO Switch

31 - EVP/EPT Circuit

A few comments - This is the first time i have had a fuel issue. Both my O2's are brand new, in a BBK O/R H pipe. I have no idea what/where the EGO switch is. I have fixed my TPS before and i had it set up properly before the car started to run like crap. The Left bank being lean is a normal occurrence and i have yet to fix it. ( usually the right bank is reported lean too. ) Im pretty sure the EVP/EPT Circuit is the vacuum line 'containers' behind the passenger strut tower, but i have no clue whats wrong witt the circuit. There's no visible damage back there ( if im even looking at the right things )

Its a 1990 5.0L with a stock engine. Headers, BBK o/r H pipe, and a few suspension upgrades. Smog pump is still hooked up along with all the vacuum lines. The H pipe did have a hole for the smog pipe.

Any input is greatly appreciated!

Bobert

Oh also, the car has stalled out on me alot too. Which never happened before. This would be while the car is attempting to idle at a red light. ( Idle is extremely rough )