citroen c3 1.4vti bosch ecu faults will no clear non starter

**bill field** · 29th May, 2020, 04:32 PM

2009 c3 picasso 1.4 vti petrol .Car will not start turns over ok but does not fire . Fault codes stored on ecu will not clear still there when you turn ignition back on .Chain and timing has been checked and is perfect .Crank and cam sensors changed .Still the same .Any ideas why the faults wont clear please ? Thanks

**bill field** · 29th May, 2020, 04:38 PM

cant get pic of codes to load for some reson

**bill field** · 29th May, 2020, 04:39 PM

codes are p0339 p1694 p0343 p0368 p0053 p0336 most relate to cam and crank sensors

**bill field** · 1st June, 2020, 11:35 AM

No One knows anything then !!

**kareszka** · 3rd June, 2020, 05:34 PM

Hello !
Check immo status in ECU , I think immo is active and ecu locked .
BR

**massiwe** · 3rd June, 2020, 06:32 PM

Several tips. starter and oxygen sensor faults can give indication for faulty BSM, Immo status check, but this is not renault where immo cuts rpm sensor, It looks like you worked a lot on this car, common fault is measure wires between sensors and ECU, Multimeter sonde are too big for PSA connectors and after "typical" cable check, loom connectors can throw away. There are smal metal plates with tension to make a contact with pins in the sensor, multimeter sonde bend them too much and they never goes back on ori position. Such measured connector make no contact anymore or sporadic contact.
Every car I get in my workshop with suspected connectors (specially if customer says, that wires are checked) I try with this gold plated pin like these pins in IDE HDD connector. If pin falls away, connector needs to be replaced.

**bill field** · 6th June, 2020, 11:53 AM

I will look into it But i bib use pins to poke the connectors with .I think the problem is the ecu cos it will not clear the codes

**bill field** · 6th June, 2020, 11:54 AM

I will look into it But i bib use pins to poke the connectors with .I think the problem is the ecu cos it will not clear the codes immo all seems to be ok on the live data