[robbie77]

Hi folks, who can help me? Car cutting out on idle or when revs drop changing from 1st to 2nd. Have to clear codes with cheap old reader to get it started. Taxi driver losing money. Replaced fuel metering valve, fuel rail pressure sensor, had a njectors checked out, new genuine fuel filter. At a loss with it. Codes coming up p0201' p0202, p0203, p0204, open circuits all of them. Manufacturers control as well. Don't want to put it in the stealers who will probably want to replace the car. Done 131000 and looked after. Cannot find a decent garage who can do a proper diagnostics. Any ideas? Robbie.

 

[WillNZ]

P0201,2,3,4 are injector circuit malfunction codes. It must be an intermittent fault as having all 4 permanent open circuits would not let the engine start or run.

You need to get it onto Diagbox/PP2000 and get live readings of fuel pressures, cam/crank sensor, injectors etc. I would take particular notice of the cam/crank sensors and associated wiring. Static fault codes are not going to be of much help here.

Also check the wiring loom for damage and check the plugs into the ECU are not corroded. Look for possible water ingress/damage inside the engine fuse box/ecu compartment. While you are at it , go through all your electrical ground and positive connections from the battery-body-engine.

Another thing to check is the state of your battery [load test] and your charging rate. What voltages are you getting from the battery while at rest and while running? Peugeots require a good electrical supply to keep them operating properly, low voltages/amps will cause all sorts of issues.

 

[robbie77]

Battery seems fine, never any problems starting. Checked earth straps and for water ingress. Think it needs planet Peugeot to,tell,exactly what is wrong. I will have another look in morning. Thank you.

 

[robbie77]

all earth straps tight, battery checked for voltage and like new, alternator working as it should and pushing power into battery. checked all connectors into ecu, all look pristine. no signs of any water whatsoever. fault is intermittent but hesitant from 1st to second on acceleration. changed fuel rail pressure switch for a new one. car wouldn't start and message came up fuel pressure too high. put the old one back in and car starts fine. still have the intermittent faults though. battery at rest is 12.55 engine running and lights on 14.4

 

[reliable406]

Fault codes are to do with injectors as said check the wiring harness to the injectors carefully they are prone to heat damage.

Stop swapping bits just for the sake of it that will just confuse you

 

[robbie77]

changed fuel rail sensor and everything ok. no problems and drives great, thank you for all info. some of us can and some of us cant.