hey guy as yall know i just did the hose under the supercharger, everthing seemed to running fine in till i pulled in my driveway from work yesterday and the cel came on and restricted performace light came on, (i didnt wot yesterday but i have when i test drive it a day before) so i cleared the code, and omw home this morning sitting at a light around the corner the lights came back on, so i just "tried to do a quick accelerate but i sputtered, you guys have a clue what it might be??

and btw i had to change the fuel pressure reg cuz the vacuum piece broke off it..

shawn

 

btw when im just cruising (normally driving), its smooth, but the sputter almost sounds like fuel cut maybe idk..

 

What are the car's details?
If you put them in your signature (User CP> edit signature) we can always see them.
What codes have you got now?
Can you read STFT and LTFTs ?

 

Check LTFTs engine warm, at idle & 2500rpm. Post them if you don't know what they mean

 

Shawn, check fuel trims as jagv8 suggests. You likely have a vaccume leak. Restricted performance only allows up to 3k rpm then fuel cut-off. Check airbox, hose from airintake (just aft to airbox) to driver cam cover, crankcase ventilation line from pass. cam cover to its source on drivers side near brake booster, hose from brake booster to intake manifold near throttle body. A leaking intake manifold gasket. Leaking EGR hose and exhaust manifold tube. Do you hear a vaccume "hissing" sound? It's always nice to have a smoke machine handy.

 

i do hear a hissing noise around the driver side somewhere, ill investigate and keep yall posted..

 

i have the torque obd scanner on my phone.. btw ill use that

 

You could watch both STFTs and squirt a tiny bit of propane near various parts. Trims should react when you're near/at the leak.

 

Check the vaccume line (grey with black line?) coming out of the rear/below supercharger to throttle body. There should be no hissing sounds.

 

i think is the small air plastic duct coming out the intake elbow, i remember when i was taking it off the piece that holds it in place, broke so its not held on securely.. i also have a a p0171 on now..

 

your not talking a about the two small hoses (black with a grey line) are you?? if u are those are in place no leak.. maybe a vacuum diagram may help me..

 

Yes, those are the hoses I meant. Post your car details in your signature. The under blower coolant hose repair likely yielded a gasket leak (throttle body, charge cooler to blower gaskets, etc. Roam around spraying carb cleaner to illicit a rise in idle.

 

hey guys just giving yall an update, looks like the leak i coming from the egr tube, i forgot it had broke, and my pops went to get it welded but the weld most of been poorly done, cuz i when turn on the air vent i smell a lil exhaust fumes coming from there, and when im at a light thats went the restricted performance light comes on and goes off when i start driving, but to ensure thats the only leak im going to my friends shop for a vacuum leak smoke test... ill keep yall updated


shawn