Where does the dash connector connect to?

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Z32HYPER29
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Joined: Wed Jul 22, 2020 3:28 pm
Car: ???

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can't find where the darn plug does too
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NolimitZ32
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Joined: Fri Jun 27, 2008 9:07 am
Car: 91 AG2 2+0 TTMT swap/E39 BMW 540i6/E53 4.6is Dinan S3
Location: Houston, TX

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Behind the blower on the passenger compartment side of the firewall.

Z32HYPER29
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Joined: Wed Jul 22, 2020 3:28 pm
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Man if you had a picture it would be awesome!!

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NolimitZ32
Posts: 7112
Joined: Fri Jun 27, 2008 9:07 am
Car: 91 AG2 2+0 TTMT swap/E39 BMW 540i6/E53 4.6is Dinan S3
Location: Houston, TX

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No picture, not sure if its actually possible to get a picture without removing a ton of stuff. If your car is LHD (not sure where exactly it would be on RHD), pull back the carpet, remove the plywood floor panel and follow the main EFI harness from the ECU to the first split you feel (you may be able to see it if you lay on your back with your head up against the firewall.

Z32HYPER29
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Joined: Wed Jul 22, 2020 3:28 pm
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So I checked. The weird thing is I can reach up.there but the first split is another sort of connector. Is there anyway to bypass this connector...but I'm more confused now as the first split is not even that connector

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NolimitZ32
Posts: 7112
Joined: Fri Jun 27, 2008 9:07 am
Car: 91 AG2 2+0 TTMT swap/E39 BMW 540i6/E53 4.6is Dinan S3
Location: Houston, TX

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There are two looms at the same split, one is a jumper bank (dead end) taped to the main loom. The second is the 9-pin connector that you are looking for. On the factory harness there is not the smaller "quick connect" white connector in the middle, the loom ends in the large 9-pin plug which then runs to the body loom. Wiring specialties added the "quick connect" because the factory 9-pin is a huge PITA to get through the firewall without removing the blower, evaporator and ducting along with the dog leg clip that's down there.

Anyway, what are you trying to do?

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Z32HYPER29
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Joined: Wed Jul 22, 2020 3:28 pm
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U hit the nail.bud. yes thats the piece I can touch. The grey one


Well.long story short. Im.diagnosing a crank. No start, no spark.

I have changed to a new cas, new ptu, fuel pump is now dedicated with a relay. I checked all relays. It has be stumped. I'm down to the harness or ecu.

I checked the fuses in the kickpanel too...egi fuse 7.5amp is blown but doesn't seem to get power anymore

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NolimitZ32
Posts: 7112
Joined: Fri Jun 27, 2008 9:07 am
Car: 91 AG2 2+0 TTMT swap/E39 BMW 540i6/E53 4.6is Dinan S3
Location: Houston, TX

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Have you checked the fuse/relay box under the hood and the fusible link box by the battery?

Z32HYPER29
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Joined: Wed Jul 22, 2020 3:28 pm
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Yup..checked all fuses

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NolimitZ32
Posts: 7112
Joined: Fri Jun 27, 2008 9:07 am
Car: 91 AG2 2+0 TTMT swap/E39 BMW 540i6/E53 4.6is Dinan S3
Location: Houston, TX

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Electrical gremlins are a b**** to chase, good luck man. make sure you check the FSM (link in my sig).


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