Codes

[da_golden1]

ok well i have some CEL codes and want to know if any of them can make my car not go past 4500rpm's and sputter.

P0420- CATALYST EFFECIENCY LOW-BANK 1
P1103- WASTEGATE(DUE TO BOOST CONTROLLER)
P0443- EVAP
P0403- EGR
P0120- TPS

any of this cause bucking?

 

[Gstclipse69]

I think you just answered your question. You shouldnt get a code for the wastegate even if you have a boost controller. How is your bc hooked up?

 

[MrBoxx]

Reconnect your stock BCS electrical connecter back to the BCS. 2g's throw the code for it; 1g's don't.

Get a logger to adjust your TPS back into specs. Do a boost leak test. Do you have your EGR blocked off, or the charcoal canister removed? Any of those vacuum lines taken off their respective parts? Any leaking/rotting hoses?

 

[da_golden1]

ok, i reconnected the BCS it goes all the way to redline now but if I go past like 20% throttle it starts bucking. Is this the TPS acting up?? and how do I adjust it?

 

[MrBoxx]

TPS Adjustment, found on VFAQ

Get a logger to help you and find out what's going on while you're driving. You may be getting knock, or phantom knock. What kind of spark plugs are you using? Wires? Are either old?

 

[da_golden1]

ngk wires and plugs are about three weeks old. If I bought a new TPS would I have to adjust it?

 

[MrBoxx]

Yes. The TPS has two slotted bolt holes on it where it "twists" in relation to the throttle plate. You need to have this adjusted fairly well, otherwise the TPS readings will not reflect the true throttle position. I recently had to do this due to a cracked TPS, and it wasn't a big deal.

 

[da_golden1]

ok so i ordered a new one and it will be in tuesday just in case and I ordered the throttle body gaskets I have to adjust it to 0.9 ohms?