Wiring help please
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Wiring help please
Hi all, hopefully this is in the correct section as I wasn’t sure if it should be here or the electrical section. I’ve also done a search and couldn’t find a post with the attachment still live.
I’ve got a 56 with a 99 Crown Vic 4.6. It has on plug coils, EGR, EVAP (well some of it) which is missing. I’ve rewired the OBD2 socket and got fault codes form the Evap pressure switch and all 4 o2 heaters. While these most likely aren’t the misfire I would like to get the o2 heaters working. Does anyone have a wiring diagram for the engine management they wouldn’t mind sharing. (I did order the Haynes manual but nothing about engine wiring sadly)
Also does anyone know the fuel pressure for this engine as I’m planning to test the fuel pressure and cylinder compressions.
Thank you.
I’ve got a 56 with a 99 Crown Vic 4.6. It has on plug coils, EGR, EVAP (well some of it) which is missing. I’ve rewired the OBD2 socket and got fault codes form the Evap pressure switch and all 4 o2 heaters. While these most likely aren’t the misfire I would like to get the o2 heaters working. Does anyone have a wiring diagram for the engine management they wouldn’t mind sharing. (I did order the Haynes manual but nothing about engine wiring sadly)
Also does anyone know the fuel pressure for this engine as I’m planning to test the fuel pressure and cylinder compressions.
Thank you.
Fleet Owner
Joined: Aug 2010
Posts: 21,254
Likes: 1,656
From: Reynoldsburg, Ohio
I think you would want an EVTM from 1999 Crown Vic models---should be one on eBay I'm thinking. Check this listing: 99 Crown Vic/Grand Marquis EVTM
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Thank you. I’ve ordered one.
It was starting but now decided not to and running rich still with the faults. Hoping it’s wiring as it wasn’t wired great. My plan is I need to know it runs good before I start stripping for the other jobs
It was starting but now decided not to and running rich still with the faults. Hoping it’s wiring as it wasn’t wired great. My plan is I need to know it runs good before I start stripping for the other jobs
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