Vantage V8 fuel pump issue. Fuse vs Fuel pump driver module

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Nov 17, 2023 | 02:04 AM

#16

quadcamboy

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quadcamboy is infamous around these parts

Quote:

Originally Posted by rmrmd1956

Fuel pump module is not sending its monitoring signal check to the PCM. Read the attached OBD2 info, check fuse F9 in trunk, see attached circuit diagram. FPDM is hard to get to, see picture.

"Hard to get at"? Too bloody right! Found two broken earths which restored the DIM when reconnected, P1233 fuel system still offline though, measuring voltages at the FPDM as per your attachment, this morning.

Last edited by quadcamboy; Nov 17, 2023 at 02:07 AM.

Nov 21, 2023 | 11:47 PM

#17

quadcamboy

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Joined: Oct 2023

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Hi all, earth's repaired and still chasing P1233 fuel system disabled. Following the Aston "technical bulletin/fault finding flow chart thing posted by rmrmd1956 above. Need to check wiring between "PCM" and fuel pump driver module.

Two questions: 1 Presumably that's the power train control module? Or engine management ECU?
2 Aston Martin Technical Hub download (cheers Irish) shows engine management roughly between front suspension tower and brake servo. It isn't, so where do I find it?

Cheers Quad

Last edited by quadcamboy; Nov 22, 2023 at 02:36 AM.