Stoddart

On cold starts the car runs fine until its hot then the gas seems to lose pressure, completely. When I stomp on the gas I can keep the momentum of the engine, but if it doesn't have the constatant tapping of my foot, it stalls.

Futhermore, when I let it set to warm up it floods out or runs rich...

There are three compenents it could be for the type 89 90Q 10v givin I just replaced the fuel pump... Fuel Accumulator (which acts as a spring loaded pressure dampner) the F.P.R. (which adjusts the fuel pressure), and the fuel distributor (which keeps equal levels of pressure to each cylinder).

Im afraid to ask this question because all of you know the resulting answer... which is I need to replace both the fuel accumulator and the FPR to fix it.

But, does anyone know what exactly my problem is or if this sounds familar and you replaced it with "x" and now it runs great.

Thax guys,

-James

S4gasm (LoTR)

I'm gonna eventually replace my fuel injectors, hopefully that will help some.

dtompsett

Have you replaced the o2 sensor and temp sensors? They are what control the input to the FPR. Then try the FPR... as a last resort, source a used fuel distributor.

Almost sounds like an air leak... as the engine gets hot, a hose expands, opens up a crack, causing a vacuum leak... air being drawn into the intake after the flow-plate... which would cause it to run lean and stall out.

imhoy

perhaps the fuel mixture needs to be set, had this done on my 10v, and it ran much better after