need some help! fd wont rev under load
 

i been trying to figure it out but i cant,
first off the car has stock motor with single turbo and stock ecu.
when i start the car it idles fine, when i ease into it it will rev fine, but when i snap the throttle it wont respond and if i hold it all the way down its like i shut the engine off. any suggestions?

Reconnect your MAP sensor.

Single turbo on a stock ECU is an incredibly bad idea...

i just got the car, but the map sensor is pluged in and i did all the pin point test on the harness, i was wondering if it could be possible that i have a bad oil metering pump.

fuel system?

will put it on the oscilloscope today. see how the crank and injector pulses look

does it "free rev" normally?

I got a buddy thats a specialist in this type of things, his name is paul, let me ask him.

http://24.media.tumblr.com/tumblr_lo...yco5o1_400.jpg

He says you should check all your vacuum lines to make sure one didn't accidentally pop off.

On a serious note, what kind of injectors are you running? Are you putting alot of boost thru the single turbo? Need more info to help resolve problem.

You need to work on the F&F timing. A couple guys have it down...you are trying too hard. Not funny.

Sorry if I try hard at everything and you dont, dont get upset panda bear!

Is the problem related to intake manifold pressure? I had a similar problem where the engine would cut out above 0 PSI and it turned out to be injector seals. When the intake went under pressure it would just blow the fuel out around the injectors.

I installed a piggy back fuel controller and it fixed the problem, i guess my stock computer is going into limp mode or the injector drivers are bad, By the way my intercooler pipes are not even hooked up so is not a boost issue, Besides the first thing i did when i got the car and noticed the issue was to redo all the vacuum lines and check with soap and water for leaks.
Also checked for codes that would cause it to go into limp mode.

And by the way cptpain i does rev freely if i just gentley push it, but only to a point like 5000, i was thinking it was the tps that was bad but i checked the narrow and full range and it has a nice sweep, i also checked to make sure all the sensors and getting to the ecu.

I guess i just have a bad ecu, pfc time;)