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1.6 cr, CAYC. glow plug light flashing and oil pressure sensor light intermittent

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Hiya guys, hoping for some help

I have the oil pressure warning light come in while driving then go away again.

Also have glow plug warning light flashing and eml on. Code p242f - exhaust gas temp sensor circuit bank 1 sensor 3.

Code doesn't clear, it clears the eml but flashing glow plug light remains

Someone suggest it missed a dpf regen and need to force a regen.

Anyone have any ideas?

That may just be an actual sensor issue.

I doubt it’s the DPF not regenning causing it, because I get that sometimes with mine and you get plenty warnings via maxidot (about 10 ignition cycles) and then eml and a limp mode. Not an oil light.

A flashing glow plug light combined with or without an eml that has a MAF error would point to an egr issue (I have a guide thread on how that progresses)

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Oil pressure warning as in red light?

That, if genuinely triggered by low oil pressure, is an engine emergency.

If I were you, getting the oil pressure, or pressure switch(es), checked would be extremely urgent.

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Thanks for you replies

The red oil light comes on flashing engine off, on the MFD. then just disappears almost like halfway through the warning.

The car seems down on power but not like a limp mode, it's still pretty responsive and gets up to speed reasonably well.

I bought the car about a month ago after my greenline broke down and all of a sudden I'm getting these issues. The oil level in the car is full of not a little high.

I took to a garage they said dpf regen £200 and they need to do an oil and filter change at the same time.

@mac11irl I'll check out your thread. Thanks for your advice

@Breezy_Pete what would cause low oil pressure like that? Thanks again

I get P242F as DPF seriously restricted. The oil pressure light may be coming on due to oil being diluted with diesel due to multiple failed regens. Someone on here had same problem and theirs had diesel runaway that luckily stopped when engine was switched off. It would also explain why oil level is slightly high. I wouldnt drive until garage checks condition of oil and if its not regenerating the dpf properly. Could be a bad sensor thats causing failed regen.

Alasdair

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@mac11irl the glow plug light isn't intermittent it comes on as soon as the ignition is turned on to pos 2 then start up and remains flashing. I can clear the code on the reader and the EML disappears but the GPL remains flashing.

Do you think a dirty MAF sensor may affect this?

This is very frustrating as I use the car everyday and I don't want to make things worse but literally cannot afford to take it to a garage currently. I'm saving up up to get it sorted but I use the car for work and need it everyday.

What I don't want to do is spend £200 on a forced regen and the fault remains and line the fellas pocket while he takes shots in the dark at what the issue could be.

Just realised the oil light is flashing before ignition which may point to a bad sensor or wiring. As said P242F is restricted dpf and I would get the oil sensor checked ASAP including DPF pressure sensor. Check your airfilter as well.

Alasdair

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@Alasdair1 no the oil light is intermittent not on ignition. The coil light is on, on ignition.

Sorry read it wrong. I think it needs further investigation fairly quickly. Any oil warning lights need to be checked out even if they are random. Could be as said oil too thin (diluted) or partly blocked strainer etc or hopefully bad sensor

Alasdair

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