Ford Fusion (2002 - 2008) - 04 1.4, EAC fail - (petrol) re-curring TPS fault  
04 1.4, EAC fail - (petrol) re-curring TPS fault - mrmydak
Hi

Hopefully my first post will yield some decent results.

I drive an 04 Fusion 2 which has done just over 60k

Last week i was driving from nottingham to southampton and going down the A34 at about 70 when the engine seemed to die - no response on revving, no power etc. The display said EAC fail.

Pulled over, turned off the engine and then restarted the car. Came on and drove fine for a bit, until it went again.

This time i got the AA to come out and they looked at it, chucked the diagnostic computer in and it came up with code P2135 (i think)

The code pointed to the throttle position sensor failing.

GOt back to southampton ok, and the next day we started out going back.

It went 30 times between southampton and oxford.

Got the AA to tow from Oxford to nottingham

Being a bank holiday i then had a day when i couldn't do anything.

Got it to a garage, explained the fault and they replaced the tps/accelerator pedal.

£150

Got the car back and due to a wedding had to drive all the way back to southampton again.

Filled up and got back no problems.

Went to the wedding, and then today on the way home we got to about birmingham and it started doing it again.
20 times so far.

Not sure what to do next??

i'm assuming it can't be that switch, as surely replacing it should have fixed the problem??


so..

anyone got any ideas??

Edited by Pugugly on 30/05/2009 at 22:44

Tags: technical issues legal and consumer advice engine problem repairs

04 1.4, EAC fail - (petrol) re-curring TPS fault - elekie&a/c doctor
There are lots of known issues on this model for eac fail.Usually it is not the accelerator/tps that is at fault.Areas that need to be looked at are connections to the electronic throttle body and also those on the main engine control unit where the pins are not a tight enough fit onto the components.hth
04 1.4, EAC fail - (petrol) re-curring TPS fault - mrmydak
ah... thanks for the ideas.

Will get those other bits looked at and update

The engine check light has now gone out

Edited by mrmydak on 31/05/2009 at 11:03

04 1.4, EAC fail - (petrol) re-curring TPS fault - injection doc
A well known issue & may be a chat with BBA-reman may help.
Problem: Loss of power and EAC FAIL displayed.

Solution: The EAC FAIL relates to the electronic accelerator control. Vehicles that trigger diagnostic fault codes (DTCs) / fault codes P2138 with P2122, P2123 or P2127 a common problem is the PCM (powertrain control module = ECM = engine control module) electrical connector. Check the electrical connector for the PCM for damage to the terminals and pins. Replace or repair as necessary. On vehicles that trigger P2119, P2135, P2176, P0120, P0122, P0123, P0220, P0222 or P0223 fault codes can suffer from the same PCM terminal damage but also suffer from throttle body electrical connector damage. The throttle body will need to be inspected and tested using an scope or scanner looking at live data. Check the serial number on the throttle body. Replace with a revised throttle body of the serial number is below 400000. Fault codes definition:

Pedal fault codes

P2120 ? Pedal sensor 1 electrical error

P2122 ? Pedal sensor 1 electrical error short to ground or open circuit

P2123 ? Pedal sensor 1 electrical error short to battery

P2125 ? Pedal sensor 2 electrical error

P2127 ? Pedal sensor 2 electrical error short to ground or open circuit

P2128 ? Pedal sensor 2 electrical error short to battery

P2138 ? Pedal sensor 1 & 2 ratio error

Throtlle body fault codes

P0120 ? Throttle position sensor 1 electrical error

P0122 ? Throttle position sensor 1 electrical error short to ground

P0123 ? Throttle position sensor 1 electrical error short to battery or line break

P0220 ? Throttle position sensor 2 electrical error

P0222 ? Throttle position sensor 2 electrical error short to ground or open circuit

P0223 ? Throttle position sensor 2 electrical error short to battery

P2135 ? Throttle position sensor ratio error

P2119 ? Throttle plate convergence error. The throttle flap has not moved to the required position. This can be from an obstruction or incorrect signal. Check wiring and connectors.

P2176 - Throttle plate adaption error. After the ignition is switched off, the throttle body will run through an adaption cycle and spring check. This confirms correct functioning of the throttle body through the full range. If other fault codes are stored, they should be investigated first before P2176.

P2100 - H bridge error. Fault in circuit between throttle body motor and PCM.

PCM fault codes

P2107 - Processor monitoring on the main controller fault

P2108 - Analogue to digital converter. This can be a number of different sensors and will often be triggered with other fault codes that are more specific. P2108 can relate to mass air flow, engine speed, pedal ratio, TPS ratio, torque generation, engine speed limitation etc.

If there is inteferance or the voltage is not regulated correctly, the signal for pedals or throttle body will be out of range

P0641 ? Sensor voltage supply circuit 1 noisy signal

P0642 ? Sensor voltage supply circuit 1 short to ground or open circuit

P0643 ? Sensor voltage supply circuit 1 short to battery

P0651 ? Sensor voltage supply circuit 2 noisy signal

P0652 ? Sensor voltage supply circuit 2 short to ground or open circuit

P0653 ? Sensor voltage supply circuit 2 short to battery

It just seems that some ford dealers are inept at iether diagnosing or rectyfying the problem, & if you ask if its common you get a NO!

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