Engine stalls on acceleration
Hello just found this site. I am looking for an answer to a problem I am havening with my 1995 F150 5.0 auto tyranny 2 wheel drive. It will run fine sometimes and other times it will surge and refuse acceleration unless I stomp on it. Auto Zone read codes 13, 30 and 31. I tried removing the exhaust to eliminate the possibility of a plugged catalytic converter to no avail.
13= Cannot control RPM during ER Self-Test low RPM check.
30=Cylinder #3 Failed Cylinder Balance Test.
31=PFE or EVP circuit has intermittently failed below minimum voltage of 0.24 volts.
Could someone translate these results for me please and any experience or advise you would care to share would be greatly appreciated. I am on a limited budget and need this truck to be reliable so thanks in advance.
Oh and nice site looks very useful.
13= Cannot control RPM during ER Self-Test low RPM check.
30=Cylinder #3 Failed Cylinder Balance Test.
31=PFE or EVP circuit has intermittently failed below minimum voltage of 0.24 volts.
Could someone translate these results for me please and any experience or advise you would care to share would be greatly appreciated. I am on a limited budget and need this truck to be reliable so thanks in advance.
Oh and nice site looks very useful.
I guess I was wrong about this site being useful. I guess I will sell the junk ford and get a chevy. Thanks for nothing. Great site....bunch of losers. Not one person out of over 100 views even tried to help.
Well first of all, maybe we do not know the problem, second if you think you will have less trouble with a chevy, no comment.
The cylinder imbalance might be a bad injector, find the sensors and see if they are bad or shake the wires maybe the connectors are loose or corroded.
Besides who is the looser who is going to chevy cause of a minor problem with your Ford. Do not bash us. We are a dedicated group of Ford owners who try to help if we can.
The cylinder imbalance might be a bad injector, find the sensors and see if they are bad or shake the wires maybe the connectors are loose or corroded.
Besides who is the looser who is going to chevy cause of a minor problem with your Ford. Do not bash us. We are a dedicated group of Ford owners who try to help if we can.
Not sure how the cat had anything to do with these faults, but at least there is one thing to be sure the problem is not.
Stomping on the acceleration presents a condition known as Wide Open Throttle (WOT) - where many of the control system inputs are overridden - basically a toilet-bowl flush of fuel.
13 and 30 may be related, or not.
The Idle Air Control solenoid may have crud built up which limits its ability to control idle speed. Removing the solenoid and cleaning the passageway and piston with carb cleaner is the typical solution, but not necessarily the end-all, be-all, solve-all remedy.
There is a problem identified with the #3 cylinder. Basically this fault occurs when the test mode cycles through and measures the RPM drop from each cylinder when its fuel supply / spark is shut off. No RPM drop means this cylinder is not contributing to the cause. Fuel or spark are the main culprits before getting into the low probability stuff - this would include things such as a plugged / failed injector, bad plug wire or plug, etc.
There is a problem with the EGR circuit. Either the valve is actually where it shouldn't be - which could also be a contributor to the other two faults - or, there is a position / flow measurement problem. This model should have the DPFE system - which has had some issues with flow tube pluggage. Again, cleaning these passageways out is the typical remedy.
Apologies for missing your post on the first go-round. However, given the volume of posts that go through this site, it is hard for an individual to catch ones that haven't been replied to before they drop off the map. A simple 'bump' would have worked better than your acidic, Neanderthal-knuckle-dragger response. Perhaps the real loser is someone who is demanding something for free.
Good luck with whichever way you decide to go.
Stomping on the acceleration presents a condition known as Wide Open Throttle (WOT) - where many of the control system inputs are overridden - basically a toilet-bowl flush of fuel.
13 and 30 may be related, or not.
The Idle Air Control solenoid may have crud built up which limits its ability to control idle speed. Removing the solenoid and cleaning the passageway and piston with carb cleaner is the typical solution, but not necessarily the end-all, be-all, solve-all remedy.
There is a problem identified with the #3 cylinder. Basically this fault occurs when the test mode cycles through and measures the RPM drop from each cylinder when its fuel supply / spark is shut off. No RPM drop means this cylinder is not contributing to the cause. Fuel or spark are the main culprits before getting into the low probability stuff - this would include things such as a plugged / failed injector, bad plug wire or plug, etc.
There is a problem with the EGR circuit. Either the valve is actually where it shouldn't be - which could also be a contributor to the other two faults - or, there is a position / flow measurement problem. This model should have the DPFE system - which has had some issues with flow tube pluggage. Again, cleaning these passageways out is the typical remedy.
Apologies for missing your post on the first go-round. However, given the volume of posts that go through this site, it is hard for an individual to catch ones that haven't been replied to before they drop off the map. A simple 'bump' would have worked better than your acidic, Neanderthal-knuckle-dragger response. Perhaps the real loser is someone who is demanding something for free.
Good luck with whichever way you decide to go.



