Check engine light and high Idle Speed

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Check engine light and high Idle Speed

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Blazer Forum >> Mechanical & Maintenance >> General Tech Help >> 2nd Gen (1995-2005) Tech >> Check engine light and high Idle Speed

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Check engine light and high Idle Speed - 9/20/2008 12:24:08 PM

Kraked Jack

Posts: 5
Joined: 9/6/2008
Status: offline

Okay so its a 95 blazer 4x4 4.3L vortec 6 runs great.... then check engine light comes on and revs to 2000 rpm?? its a 1995 so i figure its an obd 1 but it has a 16 pin connector ?? if i flash the ecm by pulling the fuse for ecm/batt check engine goes away runs fine until light comes on again! sounds like a egr valve to me? so i bought a haynes manual and it does not show the egr valve for my engine? ugh i am mechanicaly inclined but this thing has me at wits end!!!!!

please somone explain a little bit to me before i replace O2 sensors mass flow sensors !!! and a egr valve

< Message edited by Kraked Jack -- 9/20/2008 12:25:20 PM >