Greetings there, i have installed jcw 380cc injectors and since then it takes up to 4 seconds for the engine to start when its hot. In the morning now when its cold its starts perfectly less than half a second cranking. When i turn the engine off and then after 10 seconds try to start it again it starts normally. But if i let it for 30 or more minutes and then try again it takes up to 4 seconds to start. Any suggestions would be more than welcome!
Looking forward for any replies! Thanks in advance.
George.

 

Any suggestions on what to check? Im running the GP file in my ecu.

 

Any suggestions on what to check? Im running the GP file in my ecu.
Thanks in advance!

 

Please list more about your build. I'd suggest a tune, as just running the GP tune probably isn't enough. are you running a stock pully? intake? exhaust? Have you done any OBDII diagnostics?

If you live near a dyno, I'd recommend contacting JAN@RMW, and getting a tune done for your specific build.

 

Actually the car is too rich when it starts and its rich in all conditions ,i can see it on my aem wideband , its 10-11 afr rich on idle until the oxygen sensor starts correcting. I also had my injectors tested and cleaned. Is there anything specific hardwarewise to start checking from? Like a sensor that maybe mulfunctions? Or its just the tune?
Car is on 16%+2%, grs cooler, oneball, alta cai,gp tune and cp pistons.( I had the problem before adding the pistons.)
Any advise is welcome. Thank you!

 

What do you mean by obd diagnostics? I dont have any check light on.

 

When was that tune done? if you've added/removed parts, or the weather has changed significantly, you may think about a retune. running rich can cause this and other problems.

Sure you are not currently throwing a code, but maybe you had at some point, an ecu dump can be very revealing.

 

There are adaptable parameters that your car learns and stores. If you just changed out the injectors you may find improvement by erasing the adaptable parameters. Searching the site will find a way to reset the ECU. As always I offer a money back guaranty on internet advice.