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Old 28-09-17, 04:25 PM   #1
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Ran some live data and the results aren't good. When I stomp the throttle and call for around 2300mbar of boost nothing happens. Then it slowly lumps in increments of around 200mbar a time and runs out of revs before I get to the referenced value. I took it up a hill before as it can't pull up it past 3k rpm in fourth at 70 and you can hear the turbo. Dump, spool, dump spool. It has a new turbo solenoid. No vac leaks. Swapped around the egr solenoids with another and bypassed them. Still no joy. Any ideas guys? Running out of options here. Also had a recon turbo with new repeat sensor.
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Old 29-09-17, 05:03 PM   #2
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Update. If French is left to right. These are the wires to injector 1-3 Would this bleed voltage into the other sensors? I'm going to repair them now and trace the rest of the loom while here. Already repaired the turbo and crank feeds that rubbed in the same place a few weeks back.

Ps: 4 snapped copper threads to one injector. I would laugh if I was running on 3. Would it be enough to kill an injector feed?
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Old 30-09-17, 11:07 AM   #3
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Stripped back the wires and used some block connectors to re attach them. Taped everything up and no boost. Every 3 ignition cycles I get p2565 high input circuit. I checked the plug to the turbo solenoid and it make 5v reference and 12.6 volt power. When you start the car it climbs up to 7v reference and nearly 15v power. Is it bleeding in from another wire somewhere? I'm confused. And my position repeat seems to have two 5v reference rather than a 12v power
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Old 30-09-17, 02:59 PM   #4
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A few broken strands would not drop voltage and the damaged insulation is no problem unless the core wires are earthing. Those inline connectors in the photo, what circuit are they in and how long have they been on the car? The first photo where you have your thumb the cables behind are damaged too!
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Old 30-09-17, 04:09 PM   #5
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Sorry. The blue connectors are from a few weeks back. My friend found frayed wires and put them in and it made no difference. He missed the injector ones so I taped them up and put a block connector anywhere there was broken threads.

I repaired the 3 injector wires and the feed to the connector that then runs to the repeat sensor cable down to the turbo. I have traced it back to the ecu and no cuts anywhere else. For some reason I'm getting high voltage and no boost at all since the repair.

I have tried unplugging the cable from the connector and it still shows high voltage. It's been intermittent since I got the car and I always had a feeling it was the problem. Since repairing the broken section of wire it is a permanent high voltage fault. Almost like it was losing voltage when rubbing and now it's too high now repaired. Is it possible someone wired it to the new ecu wrong? I don't get how repairing wires can cause a bigger problem.

Ps: picture 2 shows a blue connector with multiple wires. Doesn't look factory? And picture 3 is just a dirty earth if you think it's worth a clean.
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Old 30-09-17, 04:57 PM   #6
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This is the sensor. Pin 1 & 2 koeo and pin 1 & 2 with engine running.

4.89 pin 1 engine off
4.95 pin 2 engine off
4.90 pin 1 engine on
4.97 pin 2 engine on
They seem to fluctuate by like 0.01 anyway. What is the biggest cause of high voltage? Bad alternator wiring?

I can only think that the excess voltage was shared with the frayed injector wiring and now everything is separated and insulated that it's all going through the repeat sensor cable. Doesn't seem over by much but enough to put my repeat position at 97%
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20170930_175007_1506790389986.jpg   20170930_175024_1506790478500.jpg   20170930_175109_1506790517178.jpg   20170930_175131_1506790558543.jpg  
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Old 30-09-17, 06:17 PM   #7
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That earth certainly needs sorting out as bad earths are the main source of electric problems on cars. After all that is the return circuit and is just as important as the feed. If that one is that bad I would go through the rest of them on the car with a fine tooth comb.
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Old 30-09-17, 07:10 PM   #8
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Just checked it out. It looks bad from above but the contacts themselves were shiny and clean. I really don't get this. I was expecting problems because of a dodgy wire(s) and thought I'd be sorted after a bit of tlc. Only this car. It must be a short to power. I doubt I should be getting 2 4.8v signals. One should be 12v I'm sure.
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Old 30-09-17, 08:45 PM   #9
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I just read somewhere that an unplugged sensor from the same circuit can cause high voltage to another. Just like when I unplug my maf and it makes the iat read high voltage. Is it possible that the pre cat sensor being unplugged is causing high voltage to my tprs? I'm pretty much out of options besides tapping the wires closer to the pcm to see if the voltage is lower there.
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Old 02-10-17, 04:17 PM   #10
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Hey guys I need some help. I was checking over the turbo wires and voltage to cam sensor and stuff and now the car won't start. Has my pcm finally failed? Can I check it on Peugeot planet? I've been noticing an electrical hum from the glowplug relay for a while now. It stays on the whole time the ignition is on?
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