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1990 F-150 5.8 EFI

Tiny
BIG RED XTL
  • MEMBER
  • 1990 FORD F-150
  • V8
  • 2WD
  • AUTOMATIC
  • 106,000 MILES
I have recently rebuilt the engine and have gotten it back in the truck after 13 or 14 months. I have a few codes that appeared. I retrieved them by using the jumper wire method and was able to resolve several of them. I now have two in this order, the first one I am glad to see code 11 the second is code 53 TP voltage exceeds limits. I did replace the TP knowing it more than likely would not fix any thing.
One other question is the map sensors suppose to have manifold vacuum to it? This thing is fixable right?
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Monday, March 7th, 2011 AT 4:23 AM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
One other question is the map sensors suppose to have manifold vacuum to it? It suppose to have vacuum-it senses engine load
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Monday, March 7th, 2011 AT 4:35 AM
Tiny
BIG RED XTL
  • MEMBER
  • 3 POSTS
Big Red XLT the MAP sensor when hooked to vacuum causes the engine to idle very high.
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Monday, March 7th, 2011 AT 4:54 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check and test the MAP sensor: http://www.youtube.com/watch?v=B8EVhFc5Yqw
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Monday, March 7th, 2011 AT 5:45 AM

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