anti pollution

Hi im new here i have a 2008 c3 1.4 diesel my problem is when i go to start the car if i get a beep and anti pollution warning the engine does not turn . now if i switch ignition off and on sometimes only once and it will start some times up to 10 times the car runs perfect on the road there are no codes present it has covered 52000 miles Help THANKS IN ANTICIPATION

Hi iansimpson2

iansimpson2 wrote:no codes present

Highly unlikely. What did you try to read the codes with?

HI THANKS FOR REPLY I USED A SNAP ON SOLUS PRO DIAGNOSTIC TOOL THANKS 4 TIMES THIS MORNING

just had the codes read again using a different reader, P1351 unknown DTC
P0606 ECM/PCM processor, hope this helps. Thanks

iansimpson2 wrote:just had the codes read again using a different reader, P1351 unknown DTC
P0606 ECM/PCM processor, hope this helps. Thanks

This looks more like a 2008 C3 diesel

P1351 is the glow plugs or relay (doesn't matter which because its best to change the relay and the plugs at the same time).

This fault doesn't usually give driveability problems and often goes unnoticed, but it is relevant to 'anti pollution' because the way the glow-plugs are used after starting to reduce smoke.

A word of warning: removing the C3 glow-plugs (replacements available here) can bring a world of pain if they break and get stuck in the head.



P0606 ECM/PCM processor is exactly as it says, an ECU fault.

The way to deal with the P0606 is to clear that code (because its not possible to repair easily) and see if the fault stays cleared or if it returns. If it returns, I would start diagnosing P0606 only on a Lexia clone diag tool (here) because generic code readers may not be up to the job.

The 'lexia primer' post is here (lexia reading topic).

C3driver52 wrote: ....A word of warning: removing the C3 glow-plugs can bring a world of pain if they break and get stuck in the head. ......

They look similar to those in my Mercedes ..... & very easily snapped. I even snapped one just using a quarter drive T-bar Liberal dosing with Plusgas before hand & get the engine hot before attempting to remove them.

thanks for the warning i knew these can be a pita why do they make them so narrow never broke one in the old peugeot 305
the manufactors think they will never need to be replaced thanks again for replies

iansimpson2 wrote:the manufactors think they will never need to be replaced

Hello iansimpson2

I think you have a point there. A common failure for these is a stuck on relay. This will then burn out the pre-heaters very quickly. Citroens method is to change both the pre-heaters and its relay if either are to be found faulty. A bad pre-heater can also damage the relay

EmilysDad wrote: They look similar to those in my Mercedes ..... & very easily snapped. I even snapped one just using a quarter drive T-bar Liberal dosing with Plusgas before hand & get the engine hot before attempting to remove them.

Nice tip, thank you EmilysDad