3gevoclipse

A couple weeks ago I was having an odd issue with random lean spots and the car didnt want to go over 3k rpm, It turned out to be my resistor pack had failed(thankyou for all the help with that issue) I have the car running now, idle is great, dailying around is just fine. 14.7 afr cruising around and idle. if i try to put any load on the car at all it breaks up pretty bad. The afrs star around the low 12's the entire time it breaks up. It seems to pnly break up as soon as the boost gauge starts reading pressure. no cel flash or trouble codes. let off and it continues to drive fine. I pulled my plugs and they looked fine, I maybe have a thousand miles on them gapped to .016. did a boost leak test and the only small leak was at the vac line to the fpr and boost gauge. car is on e85 with a maf and a walbro 255 on fic 1150's that i just got back from fic for cleaning.

3gevoclipse

heres a log of it, around entree 704

JKX

Did you check the mass airflow sensor? Also no boost leaks?

4g63Moon

iTrader: (9)

If its on e85 check your fuel filter/sock that is attached to your fuel pump. Those tend to clog up. What turbo and boost are you running at WOT? .016 is tight and you should opening it up to about .022 and I say this assuming you are on a stock turbo or smaller than a fp black turbo since you stated you only have a 255 with 1150cc's

3gevoclipse

I did a boost leak test and didn't have anything. Is there a way to test the maf in these cars? And if the filter is clogged would the car lean out?

matt1937

that gap is wayyyy to small. i agree you need to open it up a bit

3gevoclipse

Threw some new coils and wires on the car last night. Only did a quick 5-6psi pull and the car pulled clean. It wouldn't even do that before. Didn't have a chance to throw new plugs in but doing that tonight and going for a harder pull

4g63Moon

iTrader: (9)

Yes it will run lean if the filter is clogged.