I have had this happen 3 times now. Ill be driving normal, coming up to a traffic light or a turn so Ill slow down and the car will shut off. My SES light is on and I got it read. It was P0420, which has to do with the Hgh Flow Cat I put on. The SES light has been on for about 2 weeks now. Im putting in the O2 sensor spacer today, hoping it will clear the code. Is the P0420 code Im throwing casing the car to go into limp mode.

List of parts on the car:
AMS CAI
AMS FMIC
AMS UICP/LICP
AMS HFC
AP CBE
Exedy Stage 2 HD Clutch
ACT Streetlite Flywheel
Prosport Boost Gauge
and it is NOT tuned yet.

 

Get tuned!

 

your ecu is hating you right now lol

 

Ill be getting tuned as soon as I get my tax return. I planned on getting it done last month but my clutch went out so I had to get that replaced instead of getting it tuned.

 

I hate replacing wear and tear parts when I want to buy the go faster goodies

 

Def a tuning issue. Espicially the fact that you have an intake.

 

Your telling me. I have a list of other parts waiting to go on.

AMS DP w/ O2 Housing
ETS Tubular Manifold
HB Speed 255 Fuel Pump and Housing
AMS Fuel Rails
DW 800cc Injectoer
Cosworth MX1 Cams
Blouch Dom 2.0 Turbo