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1992 Bronco Dies
Posted: Sat Jan 18, 2020 2:39 pm
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?
Re: 1992 Bronco Dies
Posted: Sat Jan 18, 2020 5:28 pm
by biggiek
Check the throttle position sensor and idle air control to start.
Re: 1992 Bronco Dies
Posted: Sun Jan 19, 2020 1:45 am
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.
Re: 1992 Bronco Dies
Posted: Sun Jan 19, 2020 1:46 am
by S00TLYFE
Nevermind on the fuel, I need to learn to read completely rather than just scanning posts.
Re: 1992 Bronco Dies
Posted: Fri Jan 24, 2020 3:12 am
by 4WPRusty
New fuel filter, Still does it.
New ICM, Still does it.
Replacing IACV tomorrow. Fingers crossed.
Re: 1992 Bronco Dies
Posted: Fri Jan 24, 2020 7:27 am
by biggiek
Happen to have the code reader for obd1?
Re: 1992 Bronco Dies
Posted: Sun Jan 26, 2020 11:13 am
by 4WPRusty
We read the codes and nothing came up.
Re: 1992 Bronco Dies
Posted: Sun Jan 26, 2020 11:15 am
by 4WPRusty
It does have a MAF swap done with Mustang ICM, Distributor and ECU.
Re: 1992 Bronco Dies
Posted: Mon Jan 27, 2020 4:29 pm
by Becks_Bronco
check all battery leads/grounds?
1992 Bronco Dies
Posted: Mon Jan 27, 2020 10:18 pm
by Tchajagos
What was the fuel pressure at the rail?
Re: 1992 Bronco Dies
Posted: Wed Feb 05, 2020 11:16 am
by 4WPRusty
We found the issue. The fuel pump relay was faulty. Replaced with new Ford unit.