Author Topic: engine dies when warm (Read 2679 times)

leeisturbo · « **on:** September 28, 2009, 03:31:43 PM »

hi all this maybe an easy one to solve but need a second opinion

right what happens is
when i start the car when it's cold fine bit jumpy on the revs but runs ok but once i head off and it gets warm i would pull up at the lights or in traffic and after about 30 seconds the rev's die a bit down to about 950 then it wants to totally cut out like a mis fire if i try to keep the rev's up it just dies even quicker no matter what i do it will cut out but if i turn it over straight away i get a big back fire stuggels abit then will start and idle fine

if no cars around and it cut's out i leave for about a minute and it starts straight away no back fire
ive been told CRANK SENSOR or THROTTLE SWITCH
isint afm as i aint got one no more had it removed and not ecu as had that changed

has anyone had a crank sensor go before not the cam sensor want to no what it does when a crank sensor is broke

THANKS ALL

AcSchnitzer318is · « **Reply #1 on:** September 29, 2009, 10:12:03 AM »

Either sensor will causes driveability issues, including engine dying. Replace them both... not too expensive.

Oh and you deleted the AFM... what engine management are you using?

Ramblin MAn · « **Reply #2 on:** September 29, 2009, 01:59:26 PM »

Sounds like its flooding. I'll guess either the TPS or your FPR is letting too much pressure build at idle.

leeisturbo · « **Reply #3 on:** September 29, 2009, 03:13:45 PM »

im running mega squirt
doesnt do it all the time sometimes may take few days some times 3 or 4 times aday ive been told it could be crank sensor as it feeds a pulse to the ecu surley if it was flooding i could keep it alive and if it was fuel it wouldnt start straight away ?

leeisturbo · « **Reply #4 on:** September 29, 2009, 03:15:23 PM »

no idle control valve no afm no cam sensor 247bhp with 251 ibft torque gt2871r turbo
RAPPID

AcSchnitzer318is · « **Reply #5 on:** September 29, 2009, 07:20:46 PM »

crank or rwhp? You said bhp so I am guessing crank number. Still good number either way. What PSI are you running?

You're using MS so just log the problem and look at it, should tell you exactly what is happening whether it's fuel or sensor related. MS logs have helped me figure everything out on my turbo so far except the damn idle control valve. Going to get with a guy who can help me with that as I would really like to be able to turn my aircon on at idle again.