Rev limiter issues

Transmission Control Module (TCM) (LS4)
Left front of the engine compartment, near the left headlight assembly .What engine does your vehicle have ?

LS4
Engine - Gas, 8 CYL, 5.3L, SFI, Aluminum, Cylinder Deactivation, GM

I'm going to take a wild guess an say you have 3.8l

L32
Engine - Gas, 6 Cylinder, 3.8L, SFI, V6 L32
Engine - Gas, 6 Cylinder, 3.8L, SFI, V6 Supercharged, GM
, GM

If it's the 3.8l L32
Engine - Gas, 6 Cylinder, 3.8L, SFI, V6 Supercharged, GM you don't have a TCM module . you have the PCM

images for 1996 Buick skylark 3100 sfi v 6 vacuum ...



More images for 1996 Buick skylark 3100 sfi v 6 vacuum hoses image

That is the rev limiter kicking in at idle.

6 Cylinders M 3.1L SFI OHV (found in 92% of 1995 Pontiac Grand Prix)

Thanks!!

What kind of air box do you have? After racing in dirt for a few laps, is the air filter getting clogged up? I would say that or possibly intaking in hot engine air (cool air atomizes the fuel better). I'd start there... then move on to fuel issues.

if it has a coil block for each plug wire, it goes 1-2-3-4-5-6

The firing order is ... 1-6-5-4-3-2

no your on the rite track worst case you will have a engine light on no big deal

the rev limiter is kicking in.without it in gear thats what it does.check that you have the throttle hooked up correct.an open vacuum will make it idle at 1400 or so not 7000

all you would really need is, maybe a transmission im not sure if your old one will bolt up. Make sure you take the entire harness and ECM. you might need some odd things along the way