car breaking up around 3800rpms

238ur50 · Post by **238ur50** » Fri Jul 14, 2006 8:38 pm

OK i know you guys are going to ask me a few questions

-what are my air/fuels well that are in the 10s around the time the car breaks up
-what boost levels the car breaks up in any boost as long as i am giving the car load it happens
-what are my plugs gapped at they are gapped at .028
-what is my timing the timing in the area varies from 30 to 16 depending on the boost level

ok the car idles and drive perfect if i stay below 3800 even if i floor it before 3800 it runs fine, but once the car gets to 3800 it like it hitting the rev limiter/launch control

well my rev limiter is at 6800 and i don't have the launch control hooked up

i hope you guys can help me

I posted my msq its 024
thanks
richie

jykÃ¤ · Post by **jykÃ¤** » Wed Jul 19, 2006 10:23 am

Hi!

I'm having same kind of problems at 4500 and after. Its just like hitting rev.limitter but my limitter is at 6500 so it should be the problem.

What might cose that kind of thing. I have tried almost everything; changed plugs, distributor, dist. arm, coil leads. I have tried leaner, richer, more advance, less advance and even dwell setting notting helps.

Where should i start loking answer??

PS: My dist. arm points dist.pin at 35 BTDC

Jyri

mops · Post by **mops** » Wed Jul 19, 2006 1:17 pm

you should start with ststing exact version of ms and code you running, brief explanation of the engine setup including ignition system/etc and most importantly a datalog.

rbuecker · Post by **rbuecker** » Sat Sep 16, 2006 5:55 am

hey this is my buddy's car. after he replaced plugs and wires it was all good. simple stuff eh