Eac Fail...no Codes Showing

[skinnerwill]

hi, car runs fine till warmed up, then if you try to re-start car it wont and EAC fail flashes up on dash. leave it 15 minutes and its fine again. I used a OBD2 tool/scanner and it doesn't show any codes or faults even when it says fault on dash.

the car doesn't miss a beat at all when driving, doesn't go into limp mode or anything, just wont re-start till cooled a little

any help or tips much appreciated

[troy45]

OBD scanner won't always pick up faults - the protocol is mainly for allowing engine type codes to be read and fixed without car going to a main dealer. There are still a lot of faults which would usually only be picked up through a Ford IDS machine.

You might have better luck with an ELM327 unit running ELMconfig or ForScan software.

[skinnerwill]

thanks for reply, I also have a ELM327, I will try again with that, otherwise looks like a trip to dealership

[jeebowhite]

best bet is to have a modified ELM cable and use FORSCAN.

However, the issue you explain suggests it will be either:

1) Camshaft sensor

or

2) vacuum pipe for the butterfly valve of the throttle body

[skinnerwill]

thanks again for reply, how do you modify cable or can you buy them modified. as for forscan I tried to download it earlier but my security wouldnt let me saying it was a threat, anyone else had that or shall I turn security off and just download it

[jeebowhite]

You can buy the cable for about 14 quid, and as for the threat I haven't seen it but some software can be very over protective

[Russ]

Have you tried cleaning the butterfly flap in the throttle body with a cleaner?

[skinnerwill]

no not as yet, off work tomorrow so will have a look.

as for the forscan I tried again and managed to download it this time. will try with ELM cable if doesn't work I will get modified one off eBay, (any recommended sellers or doesn't make much difference)

thanks again for advice/input

[jeebowhite]

I just search for modified elm 327, look for one that has 500000kbps, its around £14.