Buy a cheap scan tool.
I would be very surprised if the vehicle supports OBD-II.
Evening all. New poster, long-time lurker.
I've got a decent car-pc built as far as entertainment and basic travel utilities go, but I'm looking to expand into on-board diagnostics.
The trouble is, my vehicle is a custom built 1994 Ford E-250 (former ambulance). And I can't find out what interface it uses for diagnostics!
From poking around, I've found BOTH an OBD (hopefully OBD=II?) port, and an EEC-IV port. But as of yet I don't know which one works. Is there a guaranteed (but cheap) way to find out which one I should be using?
And if it's the EEC-IV port, is there a cable to connect it to my car-pc, and software to utilize it?
Thanks in advance!
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You cannot send me a private message using this forum. Use my email instead: vitaliy[@]scantool.net.
I would guess it will be EEC-IV
Never let the truth get in the way of a good story
Find somebody with a suitable scanner and have them checkout which interface to use.
Snapon has the name that most of these old cars were covered - at least in the old domestic software.
Have you looked for the engine ecu? What numbers are on the sticker(s)?
I've been looking for it, and have yet to find it. I know the interfaces are both under the kick panels up front (OBD-II on the driver's side, EEC-IV on the passenger).
Of course, it took me a week to find the oil filter too (under the doghouse inside the cab, instead of where it should be).
Any idea of where to look?
No, I am no expert on these kind of cars, so don't know where the ecu is. Even experts may hesitate to answer, because it's custom build.
Your OBD2 connector: what pins are present? That might give a clue what protocol is used.
Trick I often use is to start at the engine and follow the wiring from the injectors. Where is that going to?
Do you have this type of conn. in a car ?
If you have data+/data- pins there, you should have EEC IV with live data capability.
Last edited by Tomin; 11-30-2011 at 03:26 AM.
Sorry I've not gotten back to this yet, but catching the flu has knocked me right out. Hoping to get a chance to check it today, if it stops raining.