please help high AFR?

bau98 · Post by **bau98** » Thu Dec 27, 2007 4:30 am

i got a vtec turbo,and its specs:rc 550cc enjectors,aem fuel rail,walbro fuel pump,aem 3.5 bar map sensor.hondata s300...i was runing good at 10.5 afr and the car was going really good,but then my wideband shows 14.0-14.7,fuel pressure is 3 bar,boost is 0.7 bar and going really bad.What can the problem be?

Post by **Spunkster** » Thu Jan 03, 2008 11:48 am

HAs the car been tuned on the dyno?

mike93hatch · Post by **mike93hatch** » Thu Jan 03, 2008 4:21 pm

10.5:1 is pretty rich... have it tuned on a dyno by a professional tuner.

agentboost · Post by **agentboost** » Tue Jan 29, 2008 8:50 pm

did you get the car tune? check the fuel psi under load, there might be a leak in the fuel system, are you geting boost spikes?