Hello guys as mentioned in the title i have a weird cut or bug or whatever it is called while stepping on gas pedal at low rpm happens for a second then everything goes back to normal.plus it happens once a week maybe the only code i have is idle speed control which i think is related to my boomba aftermarket throttle body or can it be something else?the car pulls like a rocket so no boost leak
Any help please

 

Sounds like it could be the tune, might be a little lean on the power rpm range and the tuner might need to add some fuel on the lower load/rpm where its "bogging"

 

Since you mentioned the boomba is that a recent mod?

 

car was running fine for 1.5 months now it misfires everytime i go wot it cuts the problem developped into a misfire when hitting boost bought new spark plug wire but that ddidnt fix the problem my afr at idle are 14.7-15.2 which is nornal now no more boost without misfire

 

no new mods the cut became a misfire 4 days ago now when i hit boost the car misfire badly or cuts fuel dont know what its called

 

Remove and post pics of spark plugs

 

This is one of the plugs they do all look the same

 

Guessing your on e85? I would try new plugs. Sounds like spark blow out. Gapped at 21 if e85. If your on 91 go back to a bpr7es

 

well no im on 98 Ron do these plugs look bad?

 

Oh ok. No they dont look bad but they are like $2.50 each. Good place to start

 

they sell for 80$ here in my country we have stealerships everywhere can a bad walbro or boost leak cause such a cut when going wot only?

 

It could be a boost leak. But it would usually idle like crap also. Do you have s wideband?

 

yes my afr idles between14.7 15.3 and every one minutes makes a drop in a second to 13 then jumps to 16.it happens in a split of a second

 

Are you on speed density?
I had this problem recently. Except mine would happen under higher loads.
Turned out one of my plugs had a cracked insulator & they were gaped wrong.

My tuner looked at it and it was also a bit too rich under higher loads, so that probably didn't help.
I think it was killing/blowing out the spark.

 

You need to list your mods.
Looks like another fuel pressure problem.
The ceramics aren't supposed to be that colour.
Are you running on leaded fuel?


The plugs are the wrong ones,

http://evoscan.com/technical-vehicle...ark-plug-codes