This pump is roughly 1 month and a half old. My car hasn't been running right since I installed the new turbo back in feb. Its been running lean as hell and I have checked the fuel line routing and it is perfect. My mechanic narrowed it down to the fuel pump. That it is either defective or wasn't wired right. I am about to rip out my back seats and check the voltage from the pump. Before I do that, I would like to know if anybody that has the walbro 255 hp pump installed. I know its suppose to be loud as hell, but am I suppose to be hearing a metal knocking on metal sound coming from my tank while driving? Even at idle, it sounds like it is vibrating around inside the tank, kinda like a rattling loose heat shield sounds on an exhaust pipe but it is clearly coming from the tank. It is as clear as day and annoying as hell while sitting at a light. Is this normal for that fuel pump? Also I used the rewire kit when the fuel pump was installed.
#88486, "RE: Possibly a bad Walbro fuel pump?" In response to Reply # 1
The high pitch whine i can hear from outside the car. THAT I figured was normal, not the rattling though. Also I forgot to mention I smell fuel. Not sure if thats because I'm running lean, or there is some kind of leak, but there is no leak outside the car or in engine bay.
#88487, "RE: Possibly a bad Walbro fuel pump?" In response to Reply # 2
I think you need to double check the installation of that fuel pump, then.
______________________________ If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.
'95 Eclipse TurboGS (garage deco) '95 TSi AWD (restoring a survivor) '97 Talon ESi-T (poor impulse control) '99 Eclipse RS-T (daily beater) '13 Evo X (mostly stock) '17 Sienna (Middle Aged Dad Mobile)
#88489, "RE: Possibly a bad Walbro fuel pump?" In response to Reply # 3
another symtpom, is the A/F meter is bouncing like crazy once the car starts moving. At idle, it just reads lean. As I come to think of it, I never changed my fuel filter with the installation of new pump, guess i'll check into that too.
#88490, "RE: Possibly a bad Walbro fuel pump?" In response to Reply # 4
Originally posted by Goneallin another symtpom, is the A/F meter is bouncing like crazy once the car starts moving.
That's what its supposed to do.
Originally posted by Goneallin At idle, it just reads lean.
That's not what it's supposed to do.
Originally posted by Goneallin As I come to think of it, I never changed my fuel filter with the installation of new pump, guess i'll check into that too.
Can't hurt, but i think your problem lies with a faulty Walbro, an incorrect installation, or a fuel pressure problem in general. What is your idle fuel pressure?
______________________________ If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.
'95 Eclipse TurboGS (garage deco) '95 TSi AWD (restoring a survivor) '97 Talon ESi-T (poor impulse control) '99 Eclipse RS-T (daily beater) '13 Evo X (mostly stock) '17 Sienna (Middle Aged Dad Mobile)
#88491, "RE: Possibly a bad Walbro fuel pump?" In response to Reply # 5
my fuel pressure 42 psi. I recently changed the fmu thinking that was the problem and upgraded to the vortech sfmu and tried every combination of disk and springs to raise that pressure, and the highest i got it to was 42 psi
#88493, "RE: Possibly a bad Walbro fuel pump?" In response to Reply # 6
Originally posted by Goneallin my fuel pressure 42 psi. I recently changed the fmu thinking that was the problem and upgraded to the vortech sfmu and tried every combination of disk and springs to raise that pressure, and the highest i got it to was 42 psi
what year are you? did you disable the the stock FPR?
#88495, "RE: Possibly a bad Walbro fuel pump?" In response to Reply # 7
stock fpr has been bypassed. The fuel line setup has been checked and rechecked, and triple checked. Its perfect, that I am sure of. Its a 99 eclipse rs
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