Glowplug issue

**heraldsteve** · 23rd November 2021, 13:29

I was getting 'service soon' messages and when I scanned for codes it was showing P0672. So I cleared the code, replaced number 2 glowplug and all was fine for a couple of journeys but then the 'service soon' message returned.

I have rescanned it the only code is P0672 but is showing as historic and status 7F (see screenshot). If I delete the code it tells me it's cleared but it reappears if I rescan. The service soon message reappears after a couple of journeys.

Does anyone know what this means? Ie, is the glowplug still a problem, what else should I do, or can I ignore it, will the service soon message go away eventually, etc?

**northpole** · 23rd November 2021, 13:52

Historic... use a proper scanner to wipe the historic faults... not all andriod capable devices actually clear the historic faults... they need to be send a proper erase command rather than a wipe as most andriod apps do.

Anyway if you want a proper andriod app that actually does remove historical faults, use scanmyopelcan mind you it's not free

**Big Dave** · 23rd November 2021, 14:09

Are you sure you replaced the correct glowplug and not No.3?

Cylinder No.1 is at cambelt end.

Sorry if that's teaching granny to suck eggs, but people have been known to think No.1 is at flywheel end.

The "service vehicle soon" message will remain until the fault has been rectified, which suggests you haven't got to the bottom of the problem.

**heraldsteve** · 23rd November 2021, 14:58

Thank you for the tips

**heraldsteve** · 23rd November 2021, 15:00

It's definitely number 2 I've replaced. I only get the historic code since I changed it so something has changed. I will try a different app as mentioned above.

**Big Dave** · 24th November 2021, 12:24

Originally Posted by heraldsteve

It's definitely number 2 I've replaced. I only get the historic code since I changed it so something has changed. I will try a different app as mentioned above.

The historic code should clear itself from the ECU memory after a certain number of clean starts or "x" amount of days without detecting another fault.

The fact you're still getting the service vehicle soon message suggests there is still a problem. Historic codes shouldn't put it back on again.