I'm not sure which forum this should be in.

Mods are in the sig.

The car is finally starting to **** me off. I have everything ready to install nitrous, and it wants to act like a chick.

Whenever I accelerate from a stop, the car bogs at 2.5k to 3k.. Its almost like I'm hitting a wall. Then it just takes off. Its freakin annoying, it actually throws me forward in my seat.

I installed new TR55's gapped. Today I installed TR6s gapped at .040 to get the car ready for the spray, and it still does it. The car also has new Bosch O2 sensors.

I don't have a SES light or anything. Where should I start? I have a way to scan the sensors and everything, I just don't know what values I should be seeing.

 

have the PCM scanned even if you don't have an SES to see if there are any DTCs stored in the memory.

 

Start by thoroughly checking out the intake tract. Filter, MAF, loose debris.

 

Found the problem in 15 min this morning.

Connected fuel pressure guage onto the fuel rail. Powered up the pump, and the pressure went up to 26PSI and immediately dropped off. I opened the access hole that I cut during my Walbro 340 install.

The fuel line on the pump was completely swollen and disfigured. It had small hole towards the top, and the clamp on the top had started to cut into the line.

I went to Napa and purchased some high pressure / fuel injection hose. $16.99 for 24".

After swapping out the bad line, powered the pump up. 54 PSI and it held steady.

The car runs strong as hell now. We scanned the codes before repairing the pump, and the were P0171 and P0174 if I remember correctly.

Thanks for all the help.... The Z is alive once again..