1995 Mazda Truck fuel system

1995 MAZDA TRUCK
130,000 MILES • 4 CYL • 2WD • MANUAL
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MAZDAB2300
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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
Oct 9, 2008 at 8:59 PM
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DOCFIXIT
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Maybe problem with Idle Speed Conrol motor on throttle body. It is controled by the ECM
Oct 12, 2008 at 3:03 PM
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MAZDAB2300
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Is this the same as the idle air control valve?
Oct 12, 2008 at 4:54 PM
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MAZDAB2300
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I had it hooked up to an OBD2 reader and it did not come up with any codes either.
Oct 12, 2008 at 4:56 PM
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DOCFIXIT
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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
Oct 12, 2008 at 5:01 PM
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MAZDAB2300
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Is that the same as the idle air control valve?
Oct 12, 2008 at 5:21 PM
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DOCFIXIT
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Yes
Oct 13, 2008 at 7:17 AM
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MAZDAB2300
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I will try to clean that or replace it next.
Oct 13, 2008 at 11:12 AM