Help me diagnose two problems
Freshman User
Joined: Jan 2003
Posts: 35
Likes: 0
From: Victoria Canada
I had the same problem on my Bronco (351, 1989) and it turned out to be the EGR valve. I just took it off, cleaned it inside and out with carb cleaner (and some WD40) and put it back on. The EGR sensor was fine.
Up to that point, I'd replaced the MAP sensor and the TPS with no results.
Up to that point, I'd replaced the MAP sensor and the TPS with no results.
Tuned
Joined: Mar 2002
Posts: 250
Likes: 0
From: Grants Pass, OR
Sounds like the FPR to me too. But, before you start throwing parts at it as some might suggest, get a Haynes manual and test these parts first before throwing out your money on the table.
BTW....I typically buy electrical components (i.e. TPS) at Napa. You will pay a couple of bucks more than Da Zone but the Echlin brand that they care is of a similar quality to OEM.
BTW....I typically buy electrical components (i.e. TPS) at Napa. You will pay a couple of bucks more than Da Zone but the Echlin brand that they care is of a similar quality to OEM.
Thread Starter
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Junior User
Joined: Mar 2004
Posts: 52
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Originally Posted by Trublufords
WHAT YEAR AND ENGINE? LOOK at ECT and ACT values and compare to engine conditions at that time (elect.temp sensor -air charge sensor)
Last edited by YankeeFan; Jun 6, 2004 at 06:06 PM.
Posting Guru
Joined: Jun 2004
Posts: 1,371
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From: just outside of Phila.
The absolute, no fail solution is to ditch the yankees, then, I would have to agree with the TPS underneath of the throttle body. I had a check engine light in my 1988 EFI 302 and the same conditions, and the new TPS cleared both.
