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Old 25-05-18, 11:52 AM   #1
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Default 207 thp 150 - p1340, p0597

Symptoms: No A/C, MIL on, car misfires and is down on power.

What Iíve done so far: Scanned the car, found p0354 (ignition circuit ďdĒ fault), and also p0597 (piloted thermostat fault) and p1340. I cleared the faults and took it for a drive. MIL returned - scanned it again, now Iíve got p1340 and p0597.

Letís ignore P0597 right now - thatís the thermostat and itís not running properly which is causing issues with my A/C.

P1340 is the serious one - itís making the car undrivable.

Iíve done some reading and P1340 can apparently mean bad coil OR bad camshaft position sensor, depending on your engine.

What does P1340 mean on a THP 150 engine? Bad coil on cyl #4?
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Old 25-05-18, 03:00 PM   #2
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p1340 is misfire on cylinder 4 on the thp engine. Swap the coil over to cylinder 3 and see if fault occurs there.

When last change spark plugs? Fuel do u use ?

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Old 25-05-18, 03:58 PM   #3
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just checked the p0354 and its cylinder 4 ignition coil control fault: coherence.

so definitely moving they coil from cylinder 4 to 3 will tell u if its definitely the coil at fault.
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Old 25-05-18, 11:27 PM   #4
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Plugs done 12k miles ago.

I always try to use 98 octane but sometimes not possible. Itís also been re-mapped and is WELL overdue for a intake carbon clean so these factors are not helping things either.

Anyway.

I swapped coils 3&4 (4 being the one closest to the front right wheel of the car) and cleared codes. Car now running OK and only showing piloted thermostat fault. Iíll fix this later since it requires replacing of the thermostat.

I will pick up a spare coil and bang it in anyway. Theyíre relatively inexpensive. I can still feel the car isnít 100% smooth.
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Old 25-05-18, 11:30 PM   #5
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Yeh could be doing with plug change as well having done that kinda mileage and having been mapped, we change ours every 5k and are gapped at 0.6mm so at 12k miles the gapping won't be helping the spark hence reduction in performance

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Old 26-05-18, 01:11 AM   #6
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What plugs do you recommend? Mine has a light tune on it, everything else is factory standard.
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Old 26-05-18, 09:50 AM   #7
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just the standard plugs u would get from Peugeot dealership for the car tbh, that's what I run on big power over standard and have not had any issues with them.
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