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Hi
I finished the installation and loaded a startup map into the ECU, when i turn on the ignition the fuel pump primes up fine but when i crank over im not getting power to R2,
i Have checked the map sensor signal via the logger.
Could this be a crank sensor issue or ???
Any help would be greatly apprieciated
Regards
MickGood morning,
Does the fuel pump prime when you switch on the ignition?As soon as the ECU senses RPM it should switch on the relays again which will give power to the engine components and fuel pump. If the relay does not switch on again it means that the ECU is not getting an RPM signal
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Automotive Racing Components
Proud worldwide distributor of Spitronics products
http://www.performanceparts.co.zaHi
Yes pump primes at initial ign on but not when cranking.Is RPM signal from crank sensor magnetic pick up ?
Mick
That means you have no rpm input when cranking the motor. The oem BMW sensor should be magnetic
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Automotive Racing Components
Proud worldwide distributor of Spitronics products
http://www.performanceparts.co.zaYes that’s correct and it does modulate between 200 ohms.
I checked the voltage at pins 6 and 12 they both are reading 9.7 volts
It’s an e24 harness red neg blue pod according to the drawings the black is either spare or shield
Can you shine some light on this dilemma
MickYou should see 5v on pin 6 from the ecu. If you see 9v I suspect your ecu has been damaged
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Automotive Racing Components
Proud worldwide distributor of Spitronics products
http://www.performanceparts.co.za
0824695033Thanks, i will double check that this arvo with a better multimeter than the cheapy that i have been using.
MickOk, yes i am getting 9.7 volts from pins 6 & 12 on my E21 harness, is this repairable ?
or do i need another ECU ? If i need another is the Venus still available ?
If not will a later ECU accomodate my E24 & E21 Harnesses ?
MickIn most cases it would be possible to repair the unit, you are welcome to send me the unit for inspection where after I would be able to quote on repairs
Automotive Racing Components
54 Rowan Place
Sunderland Ridge
Centurion
0824695033————————
Automotive Racing Components
Proud worldwide distributor of Spitronics products
http://www.performanceparts.co.za
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