Question about 1993 Chevrolet S-10 Blazer

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93 s-10 blazer keeps blowing ECMB fuse which also runs the fuel pump. cant find a schematic!

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If it's a schematic your after, go to, autozone.com, and sign up for free to get access to parts info & prices, as well as repair manuals/info. When signed up, pick your year, vehicle etc, then click on repair manuals & go to chassis electrical, then wiring diagrams, and scroll down to Figs. # 43 & 44. All info you need should be right there.

Posted on Jul 12, 2009

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The ECM tells the fuel pump to come on. You can get a circuit breaker from most parts stores, and many stores you can get a repair manual for $20 that will have a schematic in it.

Posted on Jul 12, 2009

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2 Answers

95 chevy blazer keep blowing the ecm fuse


If it "keeps" blowing the ECM fuse, it is because you "KEEP" replacing the fuse without diagnosing and repairing the reason the fuse is blown.

Please review these articles:

Where's The Fuse?

What Else Could Be Wrong?

What To Expect From An Online Car Expert

Jun 04, 2011 | 1995 Chevrolet Blazer

1 Answer

I would like a diagram for my ecmb fuse for a 1992 s10 blazer 4x4 4.3 litre engine


Hi, the ECM B fuse powers the ECM and the fuel pump. It's hard to say where the ECM power is used, since it appears as a black box in the schematic. The fuse box or owner's manual may indicate circuits that the fuse powers thru the ECM. If you find you need additional diagrams, please let me know and please specify if you have the VIN W (central point injection) or the VIN Z (throttle body injection) engine.

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Apr 09, 2011 | Chevrolet S 10 Cars & Trucks

2 Answers

Keep blowing the ecmb fuse in my 1991 s-10


check your grounds & the fuel pump connections.the ground should run to the right rear of the motor. look at the wires back to the motor on the frame for anything that may have nicked a wire or a rub thru. You have a short and i belive it shut down if you hit a bump. loose or fraid wire some place. Best of luck & keep us posted on your fix.

Mar 10, 2010 | 2000 GMC Jimmy

1 Answer

No power to fuel pump and the ecmb fuse bows as soon as i put it


Unplug all wires to the distributor, coil, fuel pum and injectors, then see if the fuse blows, if it does, sounds like an ECM failure.

Sep 26, 2009 | 1993 Chevrolet S-10 Blazer

1 Answer

88 s 10 blazer replaced fuel pump still blowing ecmb fuse where do i go next


HI. AFTER READING WHAT YOU SAID , YOU MUST OF HAD A SHORT IN YOUR WIRING TO THE PUMP. THATS WHERE YOU SHOULD HAVE STARTED. LET ME KNOW HOW YOU MAKE OUT WITH IT. JIMBO

Sep 21, 2009 | 1988 Chevrolet Blazer

1 Answer

88 s 10 blazer replaced fuel pump still blowing ecmb fuse where do i go next


If fuse is blowing you probaley have a short in the wire get a wiring diagram locate stress point in wire first such as door jams check for resistance in the wire if none there is a short somewhere

Sep 21, 2009 | 1992 Chevrolet S-10 Blazer

1 Answer

ECMB fuse keeps blowing on a 88 S15 pickup. I have replaced the fuel pump & the fuse block but my fuel pump still doesn't work


Un plug the Computer to see if the fuse doesnt blow now. You may have a short in the PCM or the harness.

Aug 31, 2009 | 1988 Chevrolet S-10

1 Answer

97 chvy 5.0 -ECM B fuse blows - Wont Start - Replaced ALL parts


that red wire is a test lead to jumper the fuel pump to test it.if ecmb fuse keeps blowing my guess is your ecm has a short in it,in that case it can be purchased at oreillys

Mar 28, 2009 | 1997 Chevrolet C1500

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