Is there any way at all to test the walbro fuel pump to see if it is goin bad.....when im cruising at a steady rpm in 3rd 4th and 5th grs i happen to get a spuddder like a hestation seems like im not getting fuel......when it first happens i get the good ole p0300 code and my afr goes REAL LEAN past 17.0......so i have a feeling it is my fuel pump is there any way at all to test to see if that is goin bad or not?

 

Could be spark related as well. How old are the plugs in the car and what are they gapped to if copper

 

oh belive me i have elimnated the plugs lol.....i have changed them back and forth from the bpr7es to the bpr8es......finally im back to the 8's gapped at .026....just so i make sure its not a spark issue and if it was spark issue i think that i would run a little bit more rich not lean thanks though

 

Yea depending on the gap. Do you have your stock pump. Its a quick way to find out if you Warlbro is breaking up on you.

 

I have the same thing happen when I get my PO300, but I assumed it was related to the ECU going into some sort of safe mode due to the code. As soon as I lift off the throttle and reapply it the problem goes away. I don't seem to have any problems with fuel at WOT so it seems that my fuel pump must be working well.

-Paul

 

But yea your right if your spark was breaking up it would be dumping fuel.

 

yeah thats tru but the only thing is once it start happening it keeps doin it repeatedly......but i mean i can drive for a month and it not happen but when it does happen everytime i was in 5th gr not in boost everytime i would hit like 5000 rpms it would happen.....the only way i could get past 5000 rpms i had to get into boost real real real odd that is why im beginning to think its the walbro