1992 Ford Tempo Engine swap

  • 1 POST
  • 1992 FORD TEMPO

Engine Performance problem
1992 Ford Tempo 4 cyl Front Wheel Drive Automatic 143, 00 miles

I purchased a used 1991 Ford tempo engine replaced it and the transmission, after weeks of hard work I finished my project, I started the car and to my surprise it statred right up. Problem the 92 engine has a cam sensor where the 1991 does not, it runs on thehighway but because of the sensor it stalls when I come to a stop or slow down, what can I do to bypass the sensor. I was going to get a used computer from the 91 tempo and replace it, any ideas. Thank you.

Do you
have the same problem?
Tuesday, August 5th, 2008 AT 10:43 PM

1 Reply

  • 1 POST

Yup! UN-fortunately now that you have gone this far, your ONLY alternative is to transfer over a 91 computer with harness.

The problem, the 92-94 models had various changes done to them due to emissions control. With-OUT a cam sensor your car goes into LIMP mode thus causing stalling etc. With-out the sensor it WILL run but NOT well.

I ran into this EXACT same problem. I had a 91 with GOOD engine and blown tranny. I also had a 93 with BAD engine but good tranny. I managed to extract the 91 engine and was ready to install into my 93 when I read on-line regarding the cam sensor issue. So I didn't get quite as far as you did. I managed to find a decent 93 block from a wrecking yard so the cam sensor wasn't an issue. But I did end up wasting alot of time extracting the 91 engine for nothing!

I have read that some guys even went as far as drilling a hole in the block right beside the distributor thinking they could fit a cam-sensor in a 91 block. I don't suggest this as the metal shavings from your drill only has one place to go, in your engine! Furthermore, even if you get a perfect hole to fit the sensor in a 91 block, there was NO lobes on the end of the 91 cams so the point is moot.

So at this stage you have 2 options.

#1 - pull the engine (again) and put in a proper engine from 92-94 (probably NOT what you had in mind)

#2 - hunt down a 91 computer with harness and make the transfer.

Not that this will make you feel any better, but if you were to place a 92-94 engine in a 91-earlier model its just a direct drop in with NO sensor issue!

All this fuss over 1 stupid sensor. Gotta love ford.
Best of luck my friend

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Wednesday, September 17th, 2008 AT 1:50 AM

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