Peugeot 207 1.4i engine ECU diagram

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noob64
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Peugeot 207 1.4i engine ECU diagram

Post by noob64 »

Hello,

I have a 2010 pug 207 1.4i. The car was doing random fail codes so after a while I found the problem that water ingress into ecu connector. My ecu is Valeo and engine code is KFT. My problem is that 2 pins from 2 connectors are rusted/almost gone.
From left to right ECU front view: connector 1 has pin F3 damaged, and middle connector A2.
I cleaned the connectors pins one by one (I took them apart) with Kontakt 60 (in the image we have F3 after cleaning).
Can someone help me with a schematic of the injection ecu ? I need to know what problems I can get if those pins get broken.

Thank you.
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GiveMeABreak
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Re: Peugeot 207 1.4i engine ECU diagram

Post by GiveMeABreak »

Hi and welcome.

Have a quick read below - I should be able to get this info - but will need some vehicle data. If you want to proceed, follow the links below and post your VIN here (it will be masked from public view automatically).
A response to your question will require detailed vehicle information that requires you to have made a current contribution to the Forum.
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clydeowenp
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Re: Peugeot 207 1.4i engine ECU diagram

Post by clydeowenp »

Donation of £10 is far cheaper than a main dealer diagnostic check. My local Peugeot dealer charges a minimum of £60 plus vat so this is a really good deal.

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GiveMeABreak
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Re: Peugeot 207 1.4i engine ECU diagram

Post by GiveMeABreak »

And this will cover cover you for up to 2 years....

noob64
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Re: Peugeot 207 1.4i engine ECU diagram

Post by noob64 »

Hi, proudly donor member. Here is my VIN: VF3**************[VIN obfuscated, can be read by forum staff]
Thank you.

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GiveMeABreak
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Re: Peugeot 207 1.4i engine ECU diagram

Post by GiveMeABreak »

Ok, thanks for that - it all helps. I'll put something up in the next 15 minutes for you.

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GiveMeABreak
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Re: Peugeot 207 1.4i engine ECU diagram

Post by GiveMeABreak »

Ok, here you go. So you have a TU3AE5 1.4i engine.

1310 is your engine ECU, but as you can see the connectors are laid out around the ECU for the purposes of the diagram.

I can't see from your photo which connector that is and as you'd expect some of the designations will be repeated for different connectors.

Let me know if you need to know some of the wiring or hardware codes as there are too many to type up all of them.

Image

noob64
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Re: Peugeot 207 1.4i engine ECU diagram

Post by noob64 »

Thank you,
Looks like corroded CMI A2 is not used so this is good, however CME F3 that is almost half its size on bottom (like in my first post picture) is used for injector 3. Having this critical pin so damaged I think I need to take it out from ECU by wire to the CME female connector specific wire.
I hope I'm not too demanding but I need to know about hardware codes: 1273, 4120, 1313, 1215, and lambdas 1352 1353 position.
LE: also please hardware codes 1312

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GiveMeABreak
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Re: Peugeot 207 1.4i engine ECU diagram

Post by GiveMeABreak »

No problem:

1273: Oil breather re-heat resistor 1
4120: Engine oil level sensor
1313: Engine speed sensor /
1215: Canister discharge electrovalve
1352: Front downstream oxygen sensor /
1353: Front upstream oxygen sensor /

noob64
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Re: Peugeot 207 1.4i engine ECU diagram

Post by noob64 »

Hi,
I found a free pin on ecu connector and moved the damaged injector pin F3 to C4 on the same plug by digging(potting) and soldering on the ecu pcb. Now it works fine. Just a remark: with this 1.4 8v petrol engine from time to time I get popping sound from exhaust while deceleration. Most of the time is happening if I rev at idle(warm engine) but I can get this also while deceleration from different speeds by fully letting go the acceleration. I checked for vacuum leaks and exhaust and found nothing, spark plugs are normally worn(4000km life) with no difference between them, also tried with new coil pack but no difference.
Is something I missed or is typically for 207 to have this "feature" ? this is odd because I found on some other forums that this popping on overrun is normal for 207 petrol engines.