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Where is the MAP sensor located on the 1990.

Tiny
BOBERTBRACKEN
  • MEMBER
  • 1990 PONTIAC BONNEVILLE
  • 150,000 MILES
Where is the MAP sensor located on the 1990 Bonneville SSE with the 3.8L?
Sunday, April 7th, 2013 AT 3:52 PM

5 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
At centerof firewall by blower motor. Check vacuum hose for being soft as it may suck together and not give map enough vacuum
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Sunday, April 7th, 2013 AT 4:04 PM
Tiny
BOBERTBRACKEN
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  • 3 POSTS
It's not in that location on the '90 Bonneville or the '92 Buick Park Avenue. I've been working on a friend's Bonneville and own the Buick with the same engine (3.8L) I can't find the MAP sensor on either car.
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Wednesday, April 17th, 2013 AT 11:59 AM
Tiny
HMAC300
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That is where it says it is where I told you. The 92 Buick doesn't have one.
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Wednesday, April 17th, 2013 AT 12:07 PM
Tiny
BOBERTBRACKEN
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  • 3 POSTS
Is it possible that the '90 Bonneville SSE doesn't have one either? Only one of the parts stores in town showed the MAP sensor as available for that vehicle and the engine is identical in every visible aspect to the engine in my Buick
.
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Wednesday, April 17th, 2013 AT 12:47 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
I guess it's possible I only have what the manual says a car 22yrs old it's hard to remember that far back.
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Wednesday, April 17th, 2013 AT 12:54 PM

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