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Ecu/Double relay problem
#1
Hi guys (and womens) ?. (sorry for my spelling, im from SWEDEN)

I try to help my friend with his peugeot 306 2.0 16v 1997 convertible .
ECU Bosch mp5.2
He got it from his past away uncle, it has been standing still for 2 years.


Battery was dead, bought a new one and put it in.
Engine cranks but dont start.

I have found a problem with the double relay.
The side of the relay that starts the fuelpump dont get a negative signal. (pin 10 if i remember correctly).

I have read so many threads on different forums but cant find what causing this problem.

I read somewhere that the negative signal should come from the ecu. I have found a cable from pin 10 in the double relay that goes to the ecu connection pin 3. Beeped it with 0 ohms so the cable is okey.



I have checked negative connections in the Engine compartment, i have checked all fuses.

Fuel cut off switch works.

Any ideas what to check next?

Here is schematic.
https://ibb.co/ww1J8Ny
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Messages In This Thread
Ecu/Double relay problem - by Mangarn - 03-06-2020, 09:19 PM
RE: Ecu/Double relay problem - by welshpug - 04-06-2020, 09:14 PM
RE: Ecu/Double relay problem - by Mangarn - 04-06-2020, 09:30 PM
RE: Ecu/Double relay problem - by Mighty306 - 05-06-2020, 11:07 AM
RE: Ecu/Double relay problem - by Mangarn - 08-06-2020, 08:37 PM
RE: Ecu/Double relay problem - by Mighty306 - 09-06-2020, 06:18 AM
RE: Ecu/Double relay problem - by Mangarn - 16-07-2020, 12:47 PM
RE: Ecu/Double relay problem - by Mighty306 - 17-07-2020, 11:41 AM
RE: Ecu/Double relay problem - by Edx1020 - 22-04-2021, 07:54 PM
RE: Ecu/Double relay problem - by Mighty306 - 29-04-2021, 08:47 PM

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