SR20 DET WARM ENGINE START UP PROBLEM

[jojy]

its funny,but engine om my 200sx starts perfectly when its cold.once the engine is warm it didn't start (( can anyone help???

[USMCgetsome]

ecu water temp sensor or maf

[jojy]

maf-??? what is this?

[USMCgetsome]

mass air flow sensor it is connected to your turbo inlet pipe and air filter. Sometimes when mafs fail it reduces power and will gradually get worse and shut your motor off while driving at normal temps. It will spit and sputter then when coming to a stop or neutral the motor will just die. if you had an aftermarket ecu or nistune you can see the voltages that the sensors are producing

[jojy]

the problem is that the ecu and whole car is ca18 det the ex owner had changed the engine on sr 20det without changing the ecu .so now everything in this car works good except this "small" problem

[zach-Ka]

ecu water temp sensor or maf

Agreed, Coolant Temp. sensor IMO.http://www.frsport.com/Nissan-....html