i have a 87 s4 n/a and its bein a pos!

i was driving it one day and went around a corner and its started running like crap

heard it was a classic fuel strainer problem and i checked the pressure and it was low

changed the fuel filter and now the pressure was high

what it would do, when its cold, it idles fine but has no power when you give it gas. When the engine heats up then, its idles like hell, missin like a sob!

so i put a walbro 255 on it for the hell of its with the strainer it came with, still did it, the intake air temp sensor was bad so i put a good used one on, still did it

put a good used fuel pressure on it yesterday...still does the same thing!!!

wth is goin on!!!! HELP!!!

 

Well, first off. You have no business with a Walbro 255 on a stock N/A.

Have you tried a stock fuel pump with a clean strainer?

 

it shouldnt matter tho, if it was getting too much fuel pressure with the old pump in it in the first place, it wasnt the pump, i just put it in there to make sure the pump and strainer were new

 

You replaced the FPR but don't know the results. I believe the stock FPR will be overwhelmed by the Walboro.

 

do you know of a aftermarket one that will work?