Car loading up with fuel on start

[e30Matt]

Ignition system is entirely brand new, Blaster 2 coil w/BavAuto wires and fresh Bosch Supers. Car in question is an '88 Seta.

On cold start I can get it to start about 50% of the time, the other 50% I have to hop out, pull the fuel pump relay to clear the fuel out of the motor, etc. etc. and then it will start normally.

Hot starts this usually isn't a problem, but once in a while it will do it.

I've got a new coolant temp sensor I'm going to throw in it just to see if that's part of the problem, but I've got a feeling it's not. I'm thinking of trying the AFM next as the car appears to be running rich all the time, whether it's cold or not.

Any ideas?

Edit: Also to add, I know the car's getting spark, I've tested all six cylinders and they're showing STRONG spark at startup.

[jlevie]

The DME's temp sensor could cause this, as could a bad FPR. The sensor isn't all that expensive so changing it is advisable. But I'd also recommend running a fuel pressure and delivery test.

I'd also suggest checking for a leaking injectors since this appears to happen only when the car has sat for a while. That's done by pulling the plugs and fuel pump relay and cranking over the engine. If fuel sprays from the plug holes you have leaking injectors.

[e30Matt]

FPR was another idea I had. Thanks jlevie, I was out of ideas and needed somewhere else to look. I'll swap the sensor out today and see what happens.

[lordofthewaters]

I'd also suggest checking for leaking injectors since this appears to happen only when the car has sat for a while. That's done by pulling the plugs and fuel pump relay and cranking over the engine. If fuel sprays from the plug holes you have leaking injectors.

+1