starting problem when engine is warm(searched) HELP

[nmssr08]

Okay everyone, I searched and got some info like checking for sparks, fuel pump, fuel filter etc.

I just got my wire harness done for my SR20 swap into my S14 so I can run A/C.

Now that my harness is done, the car is now having starting problem when the engine is in normal operating temperature. I've yet to check on the water temp sensor but I just want to know if anyone else fixed this type of problems. I thought it was the ECU so I swapped ym ECU but still having problem.....and to make my problems worse, now my Tachometer is not working. I unplugged the water temp sensor unit but it still won't start.

Could this be a harness problem? The guy who did my harness has done many SR20 swaps with functioning A/C.......

Help me out all!!! thanks in advance.

[IanS]

non working tach is problubly a wiring issue, as for the hot start issue, its most likely the coolant temp sensor for the ECU, somone asks this question about once a week. try using the search button next time.

[GTS4-R]

tach could be CAS problem.....but if it starts cold than i wouldnt think thats it....i had the same problem when 1st installed my sr in 2002. We pulled out the temp sensor to the ecu (doidnt know tahst what it was) soo i could screw in my blitz temp gauge sensor....hard time strting cold....but WOULD NOT start when warmed up..... The ecu was getting a -40 def F signal so it would dump mad fuel in and pull timing (less spark) and at operating temp that'll never work..... there are 2 temp sensors....one little one that goes to the gauge in the cluster and a bigger one goes to the ecu

[nmssr08]

tach could be CAS problem.....but if it starts cold than i wouldnt think thats it....i had the same problem when 1st installed my sr in 2002. We pulled out the temp sensor to the ecu (doidnt know tahst what it was) soo i could screw in my blitz temp gauge sensor....hard time strting cold....but WOULD NOT start when warmed up..... The ecu was getting a -40 def F signal so it would dump mad fuel in and pull timing (less spark) and at operating temp that'll never work..... there are 2 temp sensors....one little one that goes to the gauge in the cluster and a bigger one goes to the ecu

I'll try the temp sensor today.... I just got a brand new one from West Covina Nissan. It's funny that my tach is not working...... it started this when I changed my ECU. anyway, thanks man.