I need some help if any one can help, thank you for any input. It is a stock 94 delsol, code 43 (fuel supply system) only comes on after the car been driven for about 5 minutes or so.

Any idea of how to fix this?
thanks

 

your fuel pump is out of ***

 

get a walboro and throw it in and check your wires and relay

 

If the engine performance is otherwise fine, then code 43 more likely indicates a problem with the O2 sensor or its circuit.

 

thanks for all the helps.

 

My car is throwing code 43 and 41 (also its a z6). The car will almost always die instead of idling, but will always fire right back up. It seems like the power it is supposed to have is there once you get going but sometimes it stutters at take off. Any advice/help would be greatly appreciated.

 

If you are having significant performance problems with code 43, then measure the fuel pressure with and without the FPR vacuum hose attached.