im running a chipped p28 on a crome program and i threw a cel i ran the code and its 43 which is Fuel supply system. so my question is what does this mean im trying to figure out how to fix this but dont know where to start?

 

FPR or the Fuel Pump itself. Maybe Injectors, or something to do with the duty cycle or injector pulse? Dunno just a thought...?

 

Are you tuned for those 310cc injectors?

 

matter of fact b4 i started street tunning my car that code never came on, after i street tuned that code started comming, and it only comes on when im around 3000 rpms not at any other point. i mean if im crusiing around 3000 rpms it comes on only.

 

Your car is running to rich. Get bigger cams.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by typer_696 &raquo;</TD></TR><TR><TD CLASS="quote">Your car is running to rich. Get bigger cams.</TD></TR></TABLE>
Bigger cams. I don't think he has the compression for the cams he has now.

 

Yea he does he just dont know it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by typer_696 &raquo;</TD></TR><TR><TD CLASS="quote">Your car is running to rich. Get bigger cams.</TD></TR></TABLE>

dame noobs that doesnt solve the problems. Wheres the noobie slayer when u need him

 

i had the same problem for a while.

I changed my stock pump for a walbro 190. 2 months laster the code came back again.. and would come on after 2min of driving every day.

my injectors, fuel filter, fuel pump, everything was brand new.

i ended up having to change my O2 sensor and the code never came back!

 

yep, sounds like the primary O2 sensor is contaminated, either clean it off with compressed air, or put on a new one.

 

The primary O2 triggers code 43.

You can be tuned perfectly and still throw the code if the O2 "thinks" the system is rich.