1995 Mazda Truck fuel system

Tiny
MAZDAB2300
  • MEMBER
  • 1995 MAZDA TRUCK
  • 4 CYL
  • 2WD
  • MANUAL
  • 130,000 MILES
I have a 1995 Mazda B2300. It suddenly started acting strange. It will start great when cold. Once it warms up, it revs very high (about 2500 rpms) between shifts. If I push in the clutch and stop, it will take several seconds (15 or so)before the idle finally drops to normal. When I shut it off while it is warm, it is very hard to restart it again. Any ideas? I already replaced the spark plugs and fuel pressure regulator. Thank you
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Thursday, October 9th, 2008 AT 8:59 PM

7 Replies

Tiny
DOCFIXIT
  • EXPERT
Maybe problem with Idle Speed Conrol motor on throttle body. It is controled by the ECM
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Sunday, October 12th, 2008 AT 3:03 PM
Tiny
MAZDAB2300
  • MEMBER
Is this the same as the idle air control valve?
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Sunday, October 12th, 2008 AT 4:54 PM
Tiny
MAZDAB2300
  • MEMBER
I had it hooked up to an OBD2 reader and it did not come up with any codes either.
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Sunday, October 12th, 2008 AT 4:56 PM
Tiny
DOCFIXIT
  • EXPERT
It may not set a code pull it off see if pental is carboned up keeping it from closing air passage off to lower RPMS
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Sunday, October 12th, 2008 AT 5:01 PM
Tiny
MAZDAB2300
  • MEMBER
Is that the same as the idle air control valve?
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Sunday, October 12th, 2008 AT 5:21 PM
Tiny
DOCFIXIT
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Yes
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Monday, October 13th, 2008 AT 7:17 AM
Tiny
MAZDAB2300
  • MEMBER
I will try to clean that or replace it next.
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Monday, October 13th, 2008 AT 11:12 AM

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