Board index Peugeot RCZ Peugeot RCZ Technical Discussion General Technical Engine Fault Warning

Engine Fault Warning

Anything about the RCZ that doesn't belong in the forums below including Service & warranty questions

Post Thu Nov 03, 2016 11:20 am
JohnnyP Regular
Regular

Posts: 10
Kudos: 0
I know that there are a lot of similar topics, but couldn't find one quite the same, so apologies if I missed a similar thread. I should also point out that I know nothing about cars unfortunately.

I've been having problems over the last 12 months or so with the engine fault light coming on. The warning light only seems to come on when I'm stuck in a traffic jam, after a while, the car judders quite badly and the light comes on. I seem to be able to postpone the inevitable if I keep the revs above 1,000 it doesn't judder. Have no problems at all when driving normally, just seems to be when the car is idling. Also had no problems from March until last week when weather became cold again, but assume this is coincidence? Have had it diagnosed quite a few times with new spark plugs and 2 x new coil packs (1 & 4), but warning light would still appear if I got stuck in traffic. The garage swapped the new coil packs around but it still said the fault was with 1 & 4. The diagnostic also mentioned the possibility of a fault with the fuel pump, but mechanic said there was 2 and it would be a guess which one to replace. I've also noticed that there is a lot more "smoke" coming out of my exhaust than in other cars, but he said that wasn't an issue. Anyone experienced anything similar or any suggestions? Love the car, but it's getting to be a bit of a pain now. nb - when the warning light comes on, it doesn't go into limp home mode, in fact, seems to drive better lol


Post Thu Nov 03, 2016 11:42 am
pete.garratt Senior Member
Senior Member

Posts: 828
Kudos: 149
Location: Hertfordshire
I wonder if it's a temperature or air pressure/flow sensor issue?

That might explain why the symptoms are worse now the weather's changed - it spends longer warming up, giving incorrect fuelling/timing so that it runs very rough.

Not sure if that would explain why only certain cylinders are reported as faulty, though - unless it's just a quirk of the diagnostic reporting system.

Has anyone actually checked all the other engine sensors and positively shown them to be working properly?
Moroccan Red R
JBL
Black Mirror Caps

Post Thu Nov 03, 2016 12:52 pm
JohnnyP Regular
Regular

Posts: 10
Kudos: 0
Thanks for the speedy reply Pete. Will ask the question when the mechanic is back from his hols next week, but I'm guessing the answer is no the sensors haven't been checked (but I could be pleasantly surprised!). They just seem to do the diagnostic check rather than looking in the engine. Could one of the sensors be the reason why it only affects my car when stuck in traffic? With all the road works on motorways near Manchester, traffic jams are the norm at the moment!!

Post Thu Nov 03, 2016 2:34 pm
pete.garratt Senior Member
Senior Member

Posts: 828
Kudos: 149
Location: Hertfordshire
Well, I'd only be guessing, but temperature or air flow sensors might be an explanation.
Moroccan Red R
JBL
Black Mirror Caps

Post Thu Nov 03, 2016 2:34 pm
pete.garratt Senior Member
Senior Member

Posts: 828
Kudos: 149
Location: Hertfordshire
Well, I'd only be guessing, but temperature or air flow sensors might be an explanation.
Moroccan Red R
JBL
Black Mirror Caps

Post Thu Nov 03, 2016 2:42 pm
pete.garratt Senior Member
Senior Member

Posts: 828
Kudos: 149
Location: Hertfordshire
It might also be worth investing in one of the OBD2 dongles you can use with a smart phone and plug it into the diagnostic port. (Prices from £5 to £50 upwards, depending on phone and needs.)

Poor idling can come about for a number of reasons - fuel supply, vacuum leaks etc. etc.

Have a read of this link, and see if it helps identify any other possible causes:

https://www.ericthecarguy.com/faq/solvi ... idleissues
Moroccan Red R
JBL
Black Mirror Caps

Post Thu Nov 03, 2016 4:29 pm
neilgsxr69 User avatar

Moderator
Moderator

Posts: 1288
Kudos: 550
Hi, I have the occasional same fault which probably isn't as bad as yours but very occasionally when idling it will start to run rough a blip of the throttle sorts it though and it's not every time I pull up in traffic. It happened the other day probably the first time in 12 months. I did once leave it to run rough and to see what happens and it eventually stalled and put the warning message on the dash, restarted the car and no problem with it and the warning message disappeared after a few days so I never got it checked. it's not really bothered me as it only happens occasionally. Let us know if you get to the bottom of it but I think its definitely a fuel air ratio problem. :thumbup:
Image
Launch edition Pearl White Carbon roof & Wing Mirror covers / mat black Graphics

Post Thu Nov 03, 2016 10:01 pm
tianorth User avatar

Senior Member
Senior Member

Posts: 1781
Kudos: 372
Location: Fareham, Hampshire
Which version of RCZ do you have?
When it starts to faulter are you sat in gear with the clutch down?
But when you are sat out of gear it doesn't faulter?
Tia2 is a 2013 RCZ Magnetic in Black with a 2litre diesel engine
Upgraded Peugeot sat-nav now has 7 digit postcode, safety alerts and updated maps
Other mods include door catch covers, rcz puddle lights, quad exhaust tips
Tia3 is a 2015 RCZ-R in Mercury Grey with a 1.6litre petrol engine, oh and 270 bhp
Other mods include door catch covers, rcz puddle lights
Both have dash cams front and back

Post Fri Nov 04, 2016 11:05 am
pete.garratt Senior Member
Senior Member

Posts: 828
Kudos: 149
Location: Hertfordshire
Are you saying yours is OK out of gear but judders in gear with clutch depressed?

Please clarify.
Moroccan Red R
JBL
Black Mirror Caps

Post Fri Nov 04, 2016 11:09 am
pete.garratt Senior Member
Senior Member

Posts: 828
Kudos: 149
Location: Hertfordshire
Are you saying yours is OK out of gear but judders in gear with clutch depressed?

Please clarify.
Moroccan Red R
JBL
Black Mirror Caps

Post Sun Nov 06, 2016 8:59 am
thornebt User avatar

Senior Member
Senior Member

Posts: 175
Kudos: 16
I've had a few problems with fault code coming up (P1340 I think it was). Description is 'severe misfire on cylinder 4'. I've changed coil packs but the problem always seem to be cured by adding a fuel additive, I use Wurth petrol additive 300ml bought on Ebay. Next time I'm going to just add the can of additive I now carry in the boot and reset the code with the code reader I also carry in the boot. It can be very inconvenient to go into limp mode when you're a couple of hundred miles from home!

Anyway, it will be interesting to see if that is the cure for me if I get the P1340 code in the future. I tend to drive with a very light foot with an eye on the fuel consumption. I know a lot of you will probably ask what the point is in owning an RCZ and driving it in such a docile manner but I just love the car.

Cheers. Bruce.

Post Sun Nov 06, 2016 4:34 pm
tianorth User avatar

Senior Member
Senior Member

Posts: 1781
Kudos: 372
Location: Fareham, Hampshire
I drive mine with an eye on fuel consumption as well.
You not the only one!
Tia2 is a 2013 RCZ Magnetic in Black with a 2litre diesel engine
Upgraded Peugeot sat-nav now has 7 digit postcode, safety alerts and updated maps
Other mods include door catch covers, rcz puddle lights, quad exhaust tips
Tia3 is a 2015 RCZ-R in Mercury Grey with a 1.6litre petrol engine, oh and 270 bhp
Other mods include door catch covers, rcz puddle lights
Both have dash cams front and back

Post Sun Nov 06, 2016 7:53 pm
DKZ5745 User avatar

Senior Member
Senior Member

Posts: 3735
Kudos: 1133
Location: Yorkshire
I like to drive as fast as possible between petrol stations, just to make sure I don't run out before I get there :wtf:
Mk 2 GT200 Moroccan Red

Post Tue Nov 08, 2016 12:27 pm
JohnnyP Regular
Regular

Posts: 10
Kudos: 0
Thanks again Pete. Just received an Amazon voucher so will now invest in a OBD2 dongle. The damn light came on again this morning, although other than the amount of "smoke" coming out of the exhaust (it was -3), it does run much better when the engine warning light is on :) Thanks for the link as well, although raises lots more issues for me to consider.

I think the warning lights has come on more when I'm idling in neutral (in a traffic jam), although this morning, it came on when I was moving slowly (in another traffic jam) in 1st gear. The car sort of starts to judder and so I try and keep the revs above 1K to stop the juddering, which does seem to work.

The mechanic hasn't come back to me yet, so I haven't asked him about checking the sensors.

Anyway, thanks again for your interest and replies.

Post Tue Nov 08, 2016 1:07 pm
tianorth User avatar

Senior Member
Senior Member

Posts: 1781
Kudos: 372
Location: Fareham, Hampshire
Check the gap of your spark plugs, mine was trying to tickover now and again at over 1000rpm, but since the service where new plugs were fitted it's always been 650-850rpm tickover.
Tia2 is a 2013 RCZ Magnetic in Black with a 2litre diesel engine
Upgraded Peugeot sat-nav now has 7 digit postcode, safety alerts and updated maps
Other mods include door catch covers, rcz puddle lights, quad exhaust tips
Tia3 is a 2015 RCZ-R in Mercury Grey with a 1.6litre petrol engine, oh and 270 bhp
Other mods include door catch covers, rcz puddle lights
Both have dash cams front and back

Post Tue Nov 08, 2016 2:49 pm
pete.garratt Senior Member
Senior Member

Posts: 828
Kudos: 149
Location: Hertfordshire
JohnnyP wrote:
Anyway, thanks again for your interest and replies.


You're very welcome. Just remember, despite the fancy management system, it's still: suck, squeeze, bang, blow.

All the basics still apply. Hopefully, the OBD dongle will give you a few insights. Another thing to beat in mind IDT that there appear to be two types of fault codes, pending and permenant. Pending codes turn into permenant Ines if they persist, only permenant codes turn on the warning light. Your code reader and the appropriate app should be able to show you both. That might give some more pointers. Certainly, checking plug gaps (as well as air filter cleanliness/sealing, fluid levels etc.) won't do any harm and may give some more clues. Are your plugs fouled in any way, for instance (oil/carbon)?
Moroccan Red R
JBL
Black Mirror Caps

Post Wed Nov 09, 2016 10:05 am
JohnnyP Regular
Regular

Posts: 10
Kudos: 0
Are you still talking about the car? lol

Post Wed Nov 09, 2016 1:31 pm
JohnnyP Regular
Regular

Posts: 10
Kudos: 0
Thanks Tia. Had new spark plugs fitted earlier this year, but will get them checked. Tickover seems to be normally 850 ish, although I want it to tick over at 1,000 revs as it doesn't seem to judder then :eusa-think:


Return to General Technical