Do you have a fuel pressure guage? This will help with telling if your pump is going bad. Oh and I have seen walbros go bad a whole lot earlier than that. Some last and some dont.

 

No, havent got a pressure gauge unfortunatly sigh..

Can you recommend me a fuel pressure gauge that i can hook up to the fuel rail? Something thats bolt on? Dont feel like tapping something since i dont have a tapping set..

Im hoping its the pumo so i can solve this problem..

Thanks for helping!

 

HIgher temps make the cars run richer, not leaner.

Get the car to your tuner ASAP, don't try diagnosing this over the internet and potentially hurt your motor

 

Yeah i know, but my tuner is on holiday and this problem suddenly occured. I was just hoping to find some answers. on what MIGHT be the issue

I'm NOT boosting the car at all when i drive her. I'm getting a new HRC 255lph this week so i'm hoping that solves the problem.

 

Man goodluck bro

 

Exhaust leak?

I had a big exhaust leak (one of my v-band clamps came off) and it made my AFR read extremely lean. I'm thinking since a lot of air was getting into the exhaust system the readings were inaccurate. When I fixed the leak readings were back to normal.

 

I could double check that, but the car isnt giving me the big butt dyno power it had when it showed an af of 11.5 under
Boost compared to the 13.3 its showing now..

So im GUESSING there isnt enough fuel.. So thats why im hoping its the fuel pump that went bad. Gonna throw in a new HRC 255 to replace that noisy walbro and hoping that should be the case...

EDIT: It WAS the walbro that failed... New fuel pump = solved all issues