Recently, i did an engine rebuilt and install a T78. i remove the cold start system. I have PFC, and 550cc pri, and 1300cc sec.

I need to some help.......

When i start up the car, it has a lot of gas smell coming out from the exhaust and some black smoke. Is it too much fuel , and how can i fix it ?

It is hard to restart the car after turn off, i need to crack it for atleast 5-6 sec. Is it causing by the cold starting system ??

It is very hard to drive on the road, i m not talking about lag; but the car is kind of hesitating when i gas it.

thx

 

Black smoke on start up= rich...
I would start playing around with your PFC (That is a fuel controller correct?). It's not going to adjust it's self you know... Do you have anything to monitor your air/fuel ratios?

 

Who tuned it or has it even been tuned yet ?

 

It is a tuning problem.

If you have a DATALOGIT, go read my recent "FIND" about reducing the amount of cold start ignition retard. It is on the PFC forum from about a month ago.

This make the car start and run better when cold and also allowed me to take fuel out of the cold running map.

 

my frd has the same problem too... any one could help ??
maybe fuel problem !? not proper tune..... Should bring it to dyno shop.

Is it any dyno shop could do PFC in bayarea ??

 

i ahve the same problem with my car after driving it around for a while. only thing i can think that affects my fuel is my f-con... i got down/mid pipe, intake and exhaust