Thread: Misfire or stumble at high RPM

yeah,first thing I checked

Its funny,I always had low rpm misses when spark plugs were going
Gonna go ahead and put a cap and rotor on too.My wires and fuel filter are new already recently,and we should be good to go for a while I hope..

Bump...its doing it again.
It doesnt start to have problems until I have been driving for a while...like 30 mins or more.
And I can give it gas gradually ,and it is fine,but stab it and it cuts out.

get another maf.

Please explain this suggestion.
The car would run bad all the time if the maf was bad,wouldn't it?

I am running a ve maf,so I dont have a spare to try.
I do have a maxima maf,but I am not sure if that will work without a new tune on my Calum basic.

Seems to rev out fine until I have been driving for over 20-30 minutes,then starts having problems.

The maf can be bad and still work. Typically the maf over heats and will cause the car to cut out or off.then when it cools off it will work again.

What heat range are you running?

oops,missed this post the first time.
I am using a de dizzy and de external coil



hmmm,any way to test it,instead of trying to find a new one to try?


bkr6e-11,as was recommended by gregV

Just want to be sure we have the same problem....does your run ok ,then cuts off...or at high revs only?

Reason I ask,is it was cutting off when hot before once ...it turned out to be the power transistor that was failing when hot.
It would start in the morning and run fine for a while then shut off,and not start again until it cooled off.

I have been searching and reading,and searching.....



and reading...and reading,and reading.
I am gonna try the maf tomorrow.
Coincidentally I am doing a tune up on a 2000 v6 frontier and the mafs are the sameTomorrow I will try that out.
Thanks for all the help,I will report back.
I am suspecting maybe slightly over oiling the filter may have fubarred my maf.

Oh dear....

Why is it the most obvious and easiest to replace item is the last thing you guys check?

http://www.sr20-forum.com/turbo/17129-problems-full-throttle-3rd-gear-6500-7000-rpm.html

I posted the solution to this guys problem, and after many other strange and ilogical sugestions, he changed the coil and the problem went away.

CHANGE THE COIL.

It is not the maf.