engine stalling

[marios13]

sup guys see if you can help me with this, i have a 91 240sx ka motor
i have had a problem with the motor recently since i change the intake to a regular one you know short ram. when its cold it starts up great but after driving for a long time i stop turn the car off to go into a store come back out it gives a hard time to start and if it does start and wont pass 1,000 rpm and shutts off even if i pump gas.
also now im hearing knocking noises but no smoke that says i have a cracked engine and the oil is there wut is up with this!!!

[TheSnail]

Cracked the engine? Where the oil is, do you see a beam protruding from the block?:ugh:

[marios13]

what i meant was it didnt seem like i blew the engine hhaahh i just found an oil leak but it looks liike its coming from the oil pan like the gasket.
but i dont get why its not starting

[monkeyspeed]

try replacing the coolant temp sensor. if it is faulty or the connection is bad, the ecu won't know if the car is warm or not and dump a lot of fuel on start-up. This is why you can start it after it sits for awhile.

Also, check for codes...

[marios13]

Where Is The Coolant Temp Sensor

[monkeyspeed]

i'm not sure on the KA, but on the SR, it's right beside the throttle body tucked back under the fuel injectors. There should be 2 plugs: the one with 1 wire is for the cluster temp gauge. The two wire sensor is the one you want.

If you haven't already done so, you should download a copy of the fsm.