1992 Bronco Dies

4WPRusty
Posts: 93
Joined: Wed Dec 25, 2019 3:50 pm
Bronco Info: 1992 Bronco. Caged, Linked and Loud
Location: Menifee CA

1992 Bronco Dies

Post by 4WPRusty »

1992 Bronco, 351. I am having issues with it cutting out and stalling. Fuel pressure is solid, replaced fuel filter. Any other ideas? Facility inertia switch?
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biggiek
Posts: 548
Joined: Sun Aug 24, 2014 12:27 pm
Bronco Info: 92 Ford Bronco

Re: 1992 Bronco Dies

Post by biggiek »

Check the throttle position sensor and idle air control to start.
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S00TLYFE
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Bronco Info: IT RAPTOR NOW
Location: Buena Park

Re: 1992 Bronco Dies

Post by S00TLYFE »

To eliminate fuel pressure from the pump as a concern, press the schraeder valve on the fuel rail down and see if it has good psi coming out of it, or fuel at all.

After that, I would do what Brandon above me suggested. Always remember you only need 3 main components for an engine to fire, oxygen, which obviously is around or we’d have bigger problems lol, fuel, and spark. So if you confirm that you have good fuel pressure then I’d say you could eliminate fuel as a concern all together as it would just run poorly if it was an injector or something.
https://donttellmywiferacing.bigcartel.com/ (We have shirts, stickers, saginaw pumps, and other Bronco/OBS goodies)
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S00TLYFE
Posts: 1068
Joined: Mon Mar 02, 2015 10:14 am
Bronco Info: IT RAPTOR NOW
Location: Buena Park

Re: 1992 Bronco Dies

Post by S00TLYFE »

Nevermind on the fuel, I need to learn to read completely rather than just scanning posts.
https://donttellmywiferacing.bigcartel.com/ (We have shirts, stickers, saginaw pumps, and other Bronco/OBS goodies)
4WPRusty
Posts: 93
Joined: Wed Dec 25, 2019 3:50 pm
Bronco Info: 1992 Bronco. Caged, Linked and Loud
Location: Menifee CA

Re: 1992 Bronco Dies

Post by 4WPRusty »

New fuel filter, Still does it.
New ICM, Still does it.
Replacing IACV tomorrow. Fingers crossed.
biggiek
Posts: 548
Joined: Sun Aug 24, 2014 12:27 pm
Bronco Info: 92 Ford Bronco

Re: 1992 Bronco Dies

Post by biggiek »

Happen to have the code reader for obd1?
4WPRusty
Posts: 93
Joined: Wed Dec 25, 2019 3:50 pm
Bronco Info: 1992 Bronco. Caged, Linked and Loud
Location: Menifee CA

Re: 1992 Bronco Dies

Post by 4WPRusty »

We read the codes and nothing came up.
4WPRusty
Posts: 93
Joined: Wed Dec 25, 2019 3:50 pm
Bronco Info: 1992 Bronco. Caged, Linked and Loud
Location: Menifee CA

Re: 1992 Bronco Dies

Post by 4WPRusty »

It does have a MAF swap done with Mustang ICM, Distributor and ECU.
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Becks_Bronco
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Bronco Info: 96 Eddie Bauer, 5.8
Location: Antioch

Re: 1992 Bronco Dies

Post by Becks_Bronco »

check all battery leads/grounds?
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Tchajagos
Posts: 2124
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Bronco Info: 1993 xlt stock on 33' BFGs
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1992 Bronco Dies

Post by Tchajagos »

What was the fuel pressure at the rail?
4WPRusty
Posts: 93
Joined: Wed Dec 25, 2019 3:50 pm
Bronco Info: 1992 Bronco. Caged, Linked and Loud
Location: Menifee CA

Re: 1992 Bronco Dies

Post by 4WPRusty »

We found the issue. The fuel pump relay was faulty. Replaced with new Ford unit.
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