2000 expedition running badly

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Apr 12, 2004 | 08:11 PM

nugy88

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2000 expedition running badly

i have a 2000 ford expedition with the 5.4 in it it has 47500 miles on it and it just quit running the other day on the interstate. i found that the pink and black wire running back to the fuel pump was broke and fixed it but in doing that i tested a bunch of things on it with a test light then reading a book i found out that i am not suppost to use a test light on anything with a eec. well it runs now but it runs terriable and throws these codes

0743,p0755,p1747,p0443p1451,p0135,p0155p140 9. i was wondering if i screwed up the computer or if i killed all thoses senceors or if anyone has any other idea of one sencor or a plug or something to check. thanks very much for any help

Apr 12, 2004 | 08:26 PM

nugy88

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o i forgot to ask if i get a eec from a junkyard with the same number do i need to do anything other than hook it up like calibrate it or anything?

Apr 12, 2004 | 08:54 PM

HomerWinzlow

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From: Lawton, Oklahoma

It would have to be programmed for the car, with a computer. The PATS system would have to have a perameter reset. I wouldnt go jumping to conclusions on what is bad. I would take it to a competent technician and explain exactly what happened and what wiring you fixed. It may just need all codes cleared and retested for current codes. Some of those codes could be older codes set with the initial problem.

Apr 12, 2004 | 08:57 PM

nugy88

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i have cleared all the codes and restarted it and as soon as i give it a little gas or put it in gear it throws the codes again.

Apr 12, 2004 | 09:02 PM

HomerWinzlow

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From: Lawton, Oklahoma

Im just curious how the one wire broke. Ive seen vehicles with rodents/squirrel damage on the harnesses. Could be you have several wires cut or burned through somewhere.

Apr 12, 2004 | 09:06 PM

nugy88

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that makes 2 of use i dont have a clue it wasnt burn or chewed almost like pulled apart

Apr 12, 2004 | 09:13 PM

HomerWinzlow

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From: Lawton, Oklahoma

P0443- Cannister purge valve circuit malfunction
P1451 - EVAP Control System Canister Vent Solenoid Circuit Malfunction
P0135 - HO2S Sensor Circuit Malfunction (HO2S-11
P0155 - HO2S Sensor Circuit Malfunction (HO2S-21)
P1409 - EGR Vacuum Regulator Solenoid Circuit Malfunction

These are the only valid codes I can find from your list. Sounds like a major power fault. Did you check all the fuses in the power distribution box under the hood?