Hey guys.. I have a bit of a problem. I have a K20A2 EP3 and I recently installed a JRSC with 650 injectors. After 4 days of running well the car started to have two symptoms . The car only starts if it’s a cold start, if I start it and wait 5-10 minutes and turn it off and then on again it won’t start….only if I wait 15-20 minutes. The second problem is that the car idle surges between 1000 and 2000 RPM. If I unplug the water temp sensor the car starts with no problem. I ordered a new water temp sensor hoping that this will solve the problem. What am I missing ? Thanks in advance.

 

P.S.

There is not check engine light on , and the temp stays normal. These are the only symptoms. Beside this the car runs fine.

I changed the water temp sensor today and i have the same problems.

 

i am assuming you have kpro and you are tuned?

 

Yes