Eec calibration code help
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5th Wheeling
Joined: Dec 2013
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Eec calibration code help
My son and I recently swapped his e4od for a zf5 in his 94 f350 with a 460. The e4od ecm did not work well with the 5speed so we swapped in the ecm from the 1990 donor truck. All is well with the 1990 eec except we keep getting code 41 (no hego) after some diagnostics with the dmm I found that the o2 sensor has no ground at pin 49 on the eec. The e4od eec has continuity between pin 49 ( hego ground) and pin 60( eec ground) but the computer from the 1990 does not. The parts store shows 3 possiblities ( AMA, ANA, or ZA). Could somebody provide me with the correct. Ecm code fo a 1994 f350 7.5l manual trans with a 4 wire o2 sensor and black ignition module? Or at least tell me how to figure it out cause ive worn google out trying.
Logistics Pro
Joined: Aug 2014
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All is well with the 1990 eec except we keep getting code 41 (no hego) after some diagnostics with the dmm I found that the o2 sensor has no ground at pin 49 on the eec. The e4od eec has continuity between pin 49 ( hego ground) and pin 60( eec ground) but the computer from the 1990 does not.
Also, the 1990 EEC is probably looking for a 3-wire O2 not a 4-wire, I could be mistaken.
The parts store shows 3 possiblities ( AMA, ANA, or ZA). Could somebody provide me with the correct. Ecm code fo a 1994 f350 7.5l manual trans with a 4 wire o2 sensor and black ignition module? Or at least tell me how to figure it out cause ive worn google out trying.
Lead Driver
Joined: Jan 2019
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From: N.W. Alabama
When you look those 3 up they dont even say what trans, like usual, rock auto says out of stock on all 3, and only one (oreillys) have that can be ordered is the ANA-->Cardone Engine Control Module - Remanufactured 78-5856 | O'Reilly Auto
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5th Wheeling
Joined: Dec 2013
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Not sure if that is a valid test.
Also, the 1990 EEC is probably looking for a 3-wire O2 not a 4-wire, I could be mistaken.
Not sure if that is a valid test.
Also, the 1990 EEC is probably looking for a 3-wire O2 not a 4-wire, I could be mistaken.
What are the 4 digit codes on the computers for the 1990 and the 1994? Or post a picture of the labels on them.
What are the 4 digit codes on the computers for the 1990 and the 1994? Or post a picture of the labels on them.
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5th Wheeling
Joined: Dec 2013
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Likes: 3
When you look those 3 up they dont even say what trans, like usual, rock auto says out of stock on all 3, and only one (oreillys) have that can be ordered is the ANA-->Cardone Engine Control Module - Remanufactured 78-5856 | O'Reilly Auto
Fleet Owner
Joined: Oct 2005
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From: Kentucky
F4TF-ZA, F4TF-AMA and F4TF-ANA and are for a F350 truck with a 7.5L engine and E4OD.
F4TF-AKA may be what you are looking for. I found a few references stating it is for a 1994 F250/350 with a 7.5 L engine and a manual transmission.
Prior to ~1991 the 3 wire O2 sensors were grounded through the exhaust system. There was an O2 sensor ground from the PCM (Pin 49) to a spot on the engine block. That is what you are missing to get the O2 sensor circuit to work. But a 1990 PCM is designed to work with the older Push-Start ignition. Your 1994 model year truck uses the newer Computer Controlled Dwell (CCD) ignition therefore the 1990 PCM has other challenges to overcome to work in your 1994 truck.
F4TF-AKA may be what you are looking for. I found a few references stating it is for a 1994 F250/350 with a 7.5 L engine and a manual transmission.
Prior to ~1991 the 3 wire O2 sensors were grounded through the exhaust system. There was an O2 sensor ground from the PCM (Pin 49) to a spot on the engine block. That is what you are missing to get the O2 sensor circuit to work. But a 1990 PCM is designed to work with the older Push-Start ignition. Your 1994 model year truck uses the newer Computer Controlled Dwell (CCD) ignition therefore the 1990 PCM has other challenges to overcome to work in your 1994 truck.
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5th Wheeling
Joined: Dec 2013
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Likes: 3
F4TF-ZA, F4TF-AMA and F4TF-ANA and are for a F350 truck with a 7.5L engine and E4OD.
F4TF-AKA may be what you are looking for. I found a few references stating it is for a 1994 F250/350 with a 7.5 L engine and a manual transmission.
Prior to ~1991 the 3 wire O2 sensors were grounded through the exhaust system. There was an O2 sensor ground from the PCM (Pin 49) to a spot on the engine block. That is what you are missing to get the O2 sensor circuit to work. But a 1990 PCM is designed to work with the older Push-Start ignition. Your 1994 model year truck uses the newer Computer Controlled Dwell (CCD) ignition therefore the 1990 PCM has other challenges to overcome to work in your 1994 truck.
F4TF-AKA may be what you are looking for. I found a few references stating it is for a 1994 F250/350 with a 7.5 L engine and a manual transmission.
Prior to ~1991 the 3 wire O2 sensors were grounded through the exhaust system. There was an O2 sensor ground from the PCM (Pin 49) to a spot on the engine block. That is what you are missing to get the O2 sensor circuit to work. But a 1990 PCM is designed to work with the older Push-Start ignition. Your 1994 model year truck uses the newer Computer Controlled Dwell (CCD) ignition therefore the 1990 PCM has other challenges to overcome to work in your 1994 truck.
On a side note my curiosity has me wondering what is different among the e4od ecm options. Not that it is relevant or even matters.
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Logistics Pro
Joined: Aug 2014
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The E4OD has extra electronic 'drivers' to actuate the shift solenoids in the trans.
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5th Wheeling
Joined: Dec 2013
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I really meant the difference between the multiple auto transmission computer's. As in fueling, timing, and shift strategies. It doesnt matter I just find those things interesting.
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