I installed FMIC and Peter Farrell PMS and now I'm getting bad boost patterns.

Before the install I almost always got 10-8-10 in 3rd gear. Every once in a while the secondary would only go to 8psi.

Yesterday I was getting 7-5-5 in 3rd but today I'm getting 9-6-7.5? WTF. Its hotter today (90') then it was yesterday if that has any effect.

I was blowing the inlet intercooler pipe off before and getting almost no boost but that is now fixed. I can't hear any boost leaks and have tightened all connections in the IC piping.

Should I do the non-sequential? Will this fix my problem?

 

Double check your piping on the intercooler....make sure there's no leak.

Did it ever run correctly with the fuel mappings on your PMS? If it never did then check vent setting and boost setting for the data set you're running. I would say play with the manual vent setting first and see if it makes a difference.


Mark

 

i hear a boost level drops with FMIC, wehter this is the prob i dont know? Do you have a boost controller?

 

There's a drop in pressure but shouldn't be the tremendous. I have both the FMIC/PMS and know for a fact that the boost pattern problem is due to something else.

Check the above and let me know.

 

i'm running the base maps on the PMS. I don't have the controler.

Is it possible that one or both of the cats is clogged? I have the DP but I'm waiting for the High flow until I put it on. Thould be later this week.

 

simple test -
unplug the PMC and see if things go back to normal -
either way, you need to get the controller and get on a wideband - otherwise, you don't really know how you are running - although its probably rich -