90 tsi awd problem 40mph max

[jimc1370]

got a 90 tsi awd, engine sounds like it's revving to 5000rpm but only registers 2000 on the tach..when i go for a drive, it won't go past 2500rpm and 40 mph...i have it floored. could it be a bad cas?
recently installed a rebuilt head and replaced the ecu with a 90 ecu with new caps...any help would be greatly appreciated. someone told me to change out the cas...could that be the problem?

 

[jdmawd]

Make sure the coil is plugged in properly.

 

[purplehazetsi]

Maybe ur parents put a governor on it cause they know ur gonna go fast!

Do plugs, wires, and all Vacumme hoses!

 

[Groomz]

Check the timing belt. My 1G jumped a few teeth and did the same thing.

 

[kpt4321]

I bet it's a big boost leak, or ignition.

 

[jimc1370]

new timiing belt was just installed...

changed coil pak

have to check cam angle sensor, maybe installed 180 degrees off.

checking vacuum lines next

 

[91TalonTSiCT]

CAS isnt like a distributor cap. it does have adjustments, but not 180 degrees.

 

[TwoLiterV8Eater]

I believe it is still possible to install the CAS "backwards" resulting in it being 180 degrees off.

Did you install a 90 ECU in a 93 DSM? Im not positive but that could be a problem, I know there are some minor ECU differences in the 90 and 91-94 but maybe they can be enough to screw you up like that.

EDIT: I just saw your post said a 90, but your profile thing says 93. Nevermind.

 

[91TalonTSiCT]

Pins should be up. You are right that it can be installed upside down, but i didn't really think of that because I would hope that whoever is working on their car has more sense than that.

 

[98GST]

i had that problem a couple months ago, this may sound stupid but check all your piping and connections to your intercooler, i am running 28 psi and when i floored it going down the street it popped the lower intercooler piping off of the turbo and i couldnt go past 40 mph

 

[Drifte]

Originally posted by 98GST
i had that problem a couple months ago, this may sound stupid but check all your piping and connections to your intercooler, i am running 28 psi and when i floored it going down the street it popped the lower intercooler piping off of the turbo and i couldnt go past 40 mph

And no fuel cut??!

 

[CYCLONE]

A 90 ECU will not work in a 93 unless you rewire the harness.