Help with some fault finding/codes

[Pink192]

Hi

newish here and been looking through but not finding the helpI need, and your help in this would be much appreciated.

I have the following errors on my Peug 206cc 1.6 16v 2003 AUTO

1. P0107: intake manifold pressure sensor signal - open circuit or short circuit to earth
Que 1 where and what is the fault?

2. P0121: motorised throttle signal inconsistent between track 1 and 2
Que 2 where and what is the fault? (is this the accelarater pedal?)

3. P0122: motorised throttle track 1 signal fault
Que 3 where and what is the fault? (is this the accelarater pedal?)

4. P1157: no fault given
Que 4 where and what is the fault?

5. P0122: motorised throttle track 1 signal fault
Que 5 where and what is the fault? (is this the accelarater pedal?)

6. P0122: motorised throttle track 1 signal fault
Que 6 where and what is the fault? (is this the accelarater pedal?)

7. P0122: motorised throttle track 1 signal fault
Que 7 where and what is the fault? (is this the accelarater pedal?)

8: P0113: no fault given
Que 8 where and what is the fault?

I have so far replaced split rocker cover breather/vacum hoses and throttle body housing.

Thank you very much for your help in advance.

[gazza82]

3, 5, 6 and 7 are all the same!

[gazza82]

P0107 is the MAP sensor I think .. not having a 1.6 I can't really help too much

P0113 is an anti-pollution fault (possibly cat or lambda sensors)

P1157 looks like Lack of HO2S 22 switching - Sensor indicates lean

https://www.mavericktechnology.co.uk/te ... ault-codes

[IanL]

The combined MAP and IAT sensor is item 1312:



Part No 1920 AJ, and they are quite cheap - I would change that first. Then clear the faults and see what comes back. If the motorised throttle ones come back, it is the little box just to the left of the big circular air duct on the right. I would clean the electrical connector first, before changing it.

[Capncol]

If you have put a new throttle body on Then you probably have a fault in the wiring. The MAP sensor MAY be a red herring as I think It's all in the same bit of loom as the TB.
Unfortunately, so many people think the codes just tell you which part to change and that will be the end of it. As you have found, that's not always the case.
Just be aware that most autofactors will not take back electrical items that have been opened unless they are proved faulty or wrongly supplied.

[Pink192]

To date we have also replaced map sensor with no change, throttle body housing with no change and fly by pedal with no change.

[Capncol]

What symptoms are you getting, and are these NEW parts?

[Pink192]

At Idle the engine is hunting, when driving and coming to a slow drive or stop, engine stalls.
Reading states that the sensors are showing RICH (fuel!).
Parts replaced are not new, apart from the map sensor which was new, but have made no change or difference.

[Pink192]

Hi guy's still no joy, what to do next? I need to find all the earth points as some of the faults now show "- open circuit or short circuit to earth" or do I spend a small amount of money and get the main ECU (the one in the engine bay offside wing)?

But here's the problem how do you code the ECU, I have DiagBox, but not sure how to do this (never done it before! A VIRGIN )

[Capncol]

Still no joy? What have you tried now?

[Pink192]

will get back to you doing some work today, see what happens?