S40 Ingnition starting problems
Posted: Tue Mar 27, 2018 9:33 am
Hi,
I have a S40 ignition management in a car with a K-Jetronic injection ( all in perfect condition, tuned and controled )
All was perfect running before stop the car to rebuild the engine...
Once I finished the project, start ok, but if you stop the engine, you never know if it will starts again... not have a fail sequence, perfect in cold starting, but if 10 seconds after starts, engine is turn off, and you want restart again, may be yes, may be not.. usually not.
With the OEM ignition system have the car, starts perfect the 100% times you try, cold, hot, etc.. 100%.
I changed the crank sensor, and the problem it's the same...
The system it's working with:
Crank
MAP
Air temperature
Water temperature
Could you tell me, if we know we are sure, the crank sensor it's ok, if the MAP could be the problem? or more a temperature sensor ?
Not started with the laptop to see if something looks be over... but, I do the stroboscope test with the engine running and the timing it's perfect as I noted in the map, the only problem it's why if the engine is stop 5 seconds, 5 minutes, or 30 minutes, not want starts again.... In cold for the first start at the morning always start perfect as always.
May be the ECU have a problem ? It's frustrating because, I stop the car in perfect ignition condition, I made this conversion with the DTA 5 years ago and perfect since the first day...
Thanks for your coments
I have a S40 ignition management in a car with a K-Jetronic injection ( all in perfect condition, tuned and controled )
All was perfect running before stop the car to rebuild the engine...
Once I finished the project, start ok, but if you stop the engine, you never know if it will starts again... not have a fail sequence, perfect in cold starting, but if 10 seconds after starts, engine is turn off, and you want restart again, may be yes, may be not.. usually not.
With the OEM ignition system have the car, starts perfect the 100% times you try, cold, hot, etc.. 100%.
I changed the crank sensor, and the problem it's the same...
The system it's working with:
Crank
MAP
Air temperature
Water temperature
Could you tell me, if we know we are sure, the crank sensor it's ok, if the MAP could be the problem? or more a temperature sensor ?
Not started with the laptop to see if something looks be over... but, I do the stroboscope test with the engine running and the timing it's perfect as I noted in the map, the only problem it's why if the engine is stop 5 seconds, 5 minutes, or 30 minutes, not want starts again.... In cold for the first start at the morning always start perfect as always.
May be the ECU have a problem ? It's frustrating because, I stop the car in perfect ignition condition, I made this conversion with the DTA 5 years ago and perfect since the first day...
Thanks for your coments