popping at half throttle at 10psi

[cogden]

Need some help?
I started my car the other day warmed up and drove on to the freeway
at 1/2 to full throttle at 8-10psi the car started popping and jerking I thought I had a boost leak so I checked my piping and couldn’t find a leak
I also checked my maf
any ideas would be great thanks

red top sr20det
fmic
Manual boost controller
255 lph pump
3 inch exhaust
300zx maf

[Koopa Troopa]

Did you let off the throttle from full and it started popping? Sounds like you're running rich..

[cogden]

It just started doing this out of no where and only runs rich when it hits full boost I looked at the piping and did the maf test but no luck my safc2 settings worked in the past so I have no clue
I’m going to look at my plugs this week maybe there fouled what do you think

[bongnak]

is the safc all youre using for the maf?
change of temps (lower-winter) might cause a lean condition

[EJ253]

do you have the problem at full throttle also?

have you checked your sparkplugs?
maybe try regapping them a little bit smaller (like .03 or so)
maybe they need to be replaced...

gl fixing it

[Koopa Troopa]

I'm guessing that MAF has something to do with it.. or a vacuum leak somewhere...

[cogden]

I checked the maf by removing the plug and it started to run ruff so I don’t think it’s the maf but it might be a vacuum leak i will check it out this weekend:(
oh the idle is fine so i dont think it could be the plugs

[Koopa Troopa]

If it was the plugs it would hesitate not run rich.. Like I said it's prolly a vacuum leak.. Was it running fine recently or has this been an ongoing thing?

[shmiddy]

did u tune the maf to the ecu?

[holybushoffire]

Check to see if your BOV is sealing all the way after it releases.

[tdub377]

I think if it is a vacuum leak that it would not idle right either. It would be ruff. Also it might be your intercooler its self that is leaking. Have you hit any thing lately?

[cogden]

the safc was tuned for the maf and it just recently started happening out of no where :confused:

[bongnak]

disconnect the maf wires at the safc orange and white... connect the two together ( wired back to stock-temp) ..and then disconnect the maf plug at the maf... it should idle fine but not rev past 3k ,then report back...

remember the safc is a piggy back...

clean youre maf unscrew the two screws and use maf cleaner from pep boys theyre the only place i have found to sell them, dont use carb/brake cleaner... good luck

[cogden]

checked the piping and no leaks ,pulled my plugs and their slightly white so i know i'm running a tad hot ,i cleaned my maf ,
so now i turned my boost down to about stock and it doesnt pop as much but i want my boost back so i might buy a wideband whats the best bang for the buck and includes data logging