okay so a while back my car would stall out while i put in the clutch like at red lights about to go. I installed a walbro 255 later on to set up for boost. car ran great then the next day i stat it up take it down the street and it bogs out, barely even moved. it idles fine but under any and i mean ANY!!! throttle it almost shuts off. so i started with cleaning the tb and iacv and fuel injectors. nothing. i then checked my cap and rotor wasnt to bad so i took light sand paper to them. plugs are changed and gapped. i also changed fuel filter. only CEL codes i get are 10 and 65. 10 because i took of CAI. 65 because i have a 4-2-1 and need to find an extension plug. fuel pressure is around 34-40 but when i hit the throttle it drops almost to zero. all grounds seem fine and good contact. any help is needed!! this is my dd and im in high school

edit: coil is fine, icm is fine, noid light flashes, no longer have cel 10.

 

bump

 

anyone have any suggestions???

 

Maybe a clogged fuel filter.

 

i already changed that tho?

 

TPS sensor out of whack?

 

maybe i have to borrow a friends multimeter this weekend what should i look for? i know its 0.45v idle and 4.5v wot

 

There's a fuel pressure problem. Maybe bad pump.

 

well i put in a walbro 255 and when all this started happening i switched back to stock. i mean they both prime

 

Check the FPR and pump.

 

any suggestions on how to check the fpr? i got good vacumm and pump seems to be fine

 

Measure fuel pressures with and without the FPR vacuum hose connected.

 

okay with vacuum its about 32 or so and with its at 40

 

^without is at 40

 

The FPR is fine. The fuel pressure, however, should not drop to zero at WOT. Disconnecting the vacuum hose should mimic WOT. If you leave the vacuum hose disconnected for a few minutes, does the pressure eventually drop?

 

nope i just unhooked it and it stayed at 40

 

okay so i put the walbro back in and it runs some what better. also it does better when i first start it up for the first 30 seconds or so

 

fuel pickup screen in fuel pump may be gummed up... If you're like most high schoolers, leaving the tank near empty allows it to pick up all the junk on the bottom...

 

its got half a tank and both socks are actually pretty clean

 

noid light the injectors...

 

okay did noid test and got flashes

 

what does the vacuum hose off and pressure staying at 40 mean ron?

 

just checked the coil and its fine and the icm is also fine. what else can i check as far as fuel?

 

i switched the o2 plugs just to see what it would do and i no longer have code 65 i have code 41 should i get o2 sensors? and could that be my problem

 

anyone else its been almost 3 weeks