1991 Ford F150 "code ego switching" Questions

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Question about Ford F-150

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CODE 41 EGO SENSOR LEAN AND CODE 53 CROUD VACUUM SWITCH ALWAYS OPEN. HOW DO I REPAIR THIS PROBLEM? TRUCH RUNS FOUGH AFTER WARM UP. sounds like you definitely need a new throttle position sensor.  

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CODE 172 ego not switching lean condition The car has a new cat. o2 sensor, pfe and ECM coding 172 EGO not switching. I am running out of part6s to throw at this car. I am truly stumped. it is ...

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CODE 172 ego not switching lean exhaust bank 1 The 172 code on my Snap On Modus Edge says "172 - EGO NOT SWITCHING, LEAN EXHAUST, BANK 1" Then I also get the 176, says same thing only Bank 2.. so I ...

...EGO not switching lean bank1- jerks when run New o2 sensor, new ignition control module,new plugs, cap, rotor,wires, new fuel pump and filter, instected intake and exhaust. Used to do it when warmed ...

Question about Ford F-150

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...ego not switching can someone please help May be plugged catalytic converters, you need to get the exhaust dropped to tell, if when the exhaust is dropped it runs better then the cats need ...

...code was pulled 41 ego not switching lean ex (bank 1) so I changed the o2 sensor on the passenger side and the check engine has not come back on but the car feels like it's going to rattle apart from ...

Question about Ford F-150

2 Answers

...code 172 EGO not switching lean exhaust bank 1. Could an oxygen sensor cause the engine to miss? Is this code pointing to another problem? Need help, can't figure this out. I've been to this site ...

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