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Old 11-07-19, 12:08 PM   #11
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I did consider a blanking plate but ive heard that this can cause the MIL to come on and also cause problems when the DPF tries to regenerate.. whether this is true or not im not sure. I have seen that you can get a blanking plate with a hole in it to restrict the flow, would this be better?
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Old 11-07-19, 06:00 PM   #12
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and yet another update.. everything is connected back as normal and the car is back to jerking again. I decided to give it the beans on a clear road in third gear and got a new error code P0471 which related to the Exhaust pressure sensor range/performance. Ive had the DPF flushed in the last 8 months, does the DPFE sensor play a part in determining how the EGR valve works?
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Old 14-07-19, 10:48 AM   #13
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I managed to find the Exhaust Pressure sensor today hidden behind the battery, took it off and had a look inside and checked the pipes, no sign of any blockages or anything unusual.. I have a new sensor on order to see if that solves the problem. I had a regen take place yesterday whilst driving and the car was absolutely fine! You could pull away, accelerate at full power with no misfires, but as soon as the regen finished, it was back to misfiring between 2 - 3k rpm. Hoping I can get this sorted very soon as ive got to get the car to Yorkshire and back in about 3 weeks
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Old 16-07-19, 06:11 PM   #14
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UPDATE: i have replaced now the MAF sensor, the EBP sensor attached to the brake booster and the MAP sensor. The EGR valve is still shuddering and appears to be getting worse between 2k and 2500 rpm and then when you hit 3k it now gives P0238 map sensor circuit high. Im now starting to think this will never get fixed and running out of theories. I havent yet done any electrical tests but can anyone recommend anything? My earth looks a bit rusty on the right hand side of the chassis. Could a bad earth be playing a part? Any advice or suggestions would be greatly appreciated

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Old 16-07-19, 06:19 PM   #15
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did you use a genuine MAF if so check the plug connection as the circuit high fault is normally poor connection, open circuit or faulty MAF
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Old 16-07-19, 07:20 PM   #16
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Im not sure, it was from Motaparts Direct. It was branded as intermotor but the actual sensor itself was FAE. I have a link here

https://www.mpdonline.co.uk/peugeot-...ensor/INT16744

Ive just been out to clean the rusty earth on the chassis that came out of the ECU to see if that makes any difference tomorrow. I checked the ground pin from the MAP plug to the battery and engine and a circuit was present. One thing I havent tried yet is to disconnect the vacuum bypass on the EGR to see if that stops the shuddering. Disconnecting the electric plug off the EGR sorts it.

To give you a better idea of whats going on, il try and film it tomorrow and upload it to youtube
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Old 16-07-19, 07:24 PM   #17
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windy1603 im sorry, just realised I put MAF sensor in my previous post, it was the MAP sensor, Both the MAF and MAP have been changed
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Old 18-07-19, 07:33 PM   #18
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so I managed to get a refund on my MAP sensor today and put the old one back in. Its coming up with P11AA which is a bit different to P0238! So it must be MAP sensor related. I am waiting on arrival of a genuine Denso map sensor to try that and hopefully it should all be back to normal (one hopes).
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