Misfire issues - Page 2

Grumble and Grouch · 27th April 2017, 20:46

For an imbecile- looking from the front which on is number four- do you count from left to right? All the old sparks looked very old but one seemed a bit wet, think it was the one furthest to left looking from the front of the car.
Thanks everyone for the help.

suzublu · 27th April 2017, 20:50

Left to right, 1-4 either end plugs could be wet & a sign of img failure

Grumble and Grouch · 28th April 2017, 09:27

So this morning slightly lumpy, nothing too bad for ten minutes or so then fine on run to work but for the first time the engine management light came on. Is in fact running perfectly well in terms of misfire at the moment.

Drive home is about ten miles- if light is still on should I risk that? Seems that its running fine, no horrible noises or alarming signs. Running at right temp etc.
( tried disconnecting the battery to see if it would clear but has come back on)
Light goes off briefly at ignition but then straight back on.
Advice welcome!

T-Cut · 28th April 2017, 13:20

I believe the EML lights up mainly in reponse to lambda outputs, so that would suggest there's still a combustion/sparks issue (?)

TC

Grumble and Grouch · 28th April 2017, 13:30

There definitely is, went a bit lumpy again before resolving. I'm beginning to think IMG but confused as to why it's so intermittent. I'll try and have a closer look over the weekend.
Thanks.

suzublu · 28th April 2017, 13:33

Quote:

Originally Posted by Grumble and Grouch

There definitely is, went a bit lumpy again before resolving. I'm beginning to think IMG but confused as to why it's so intermittent. I'll try and have a closer look over the weekend.
Thanks.

Check the coolant level, if it's low, you've got a leak

Grumble and Grouch · 28th April 2017, 13:38

I've been checking that after pretty much every journey, appears okay but had clearly been overfilled before I got it as its above the max level. Has been some liquid under the car, presumably from overflow? The HG was done not long ago, before I had it and whilst there's evidence of previous leaks doesn't look like anything new and running at correct temps.
Cheers.

Grumble and Grouch · 28th April 2017, 15:38

Right- the wires on the turbo injector( four wires coming out on top) are very brittle and one seems to be very loose. I suspect snapped but don't want to pull it! It's the pinky/ black one. Presumably this will mean the turbo injectors don't work properly/ consistently? That could well be the problem?
Can't see where the wires go on the other end? What do I need to do about that?
Anyone know a good mobile sparky/ mechanic that can take a gander in coventry? Or any incredibly kindly soul?
Thanks in advance.

jonno12 · 28th April 2017, 16:20

lates are who people from your neck o the woods use they're members on here. very good I believe

T-Cut · 28th April 2017, 16:28

Quote:

Originally Posted by Grumble and Grouch

Right- the wires on the turbo injector (four wires coming out on top) are very brittle and one seems to be very loose.

Turbo injector? Do you mean the wires from the lambda sensor seen here to the left of the turbocharger?

If so, that could be the cause of the warning light and the lumpy running.

TC

27th April 2017, 20:46	#11
Grumble and Grouch Regular poster MGZTT Join Date: Apr 2017 Location: Coventry Posts: 82 Thanks: 6 Thanked 5 Times in 5 Posts	For an imbecile- looking from the front which on is number four- do you count from left to right? All the old sparks looked very old but one seemed a bit wet, think it was the one furthest to left looking from the front of the car. Thanks everyone for the help.

27th April 2017, 20:50	#12
suzublu This is my second home rover 75 1.8 vvc club se wedgwood blue Join Date: Aug 2009 Location: Seaton Carew Posts: 26,918 Thanks: 65 Thanked 7,142 Times in 4,642 Posts	Left to right, 1-4 either end plugs could be wet & a sign of img failure

28th April 2017, 09:27	#13
Grumble and Grouch Regular poster MGZTT Join Date: Apr 2017 Location: Coventry Posts: 82 Thanks: 6 Thanked 5 Times in 5 Posts	So this morning slightly lumpy, nothing too bad for ten minutes or so then fine on run to work but for the first time the engine management light came on. Is in fact running perfectly well in terms of misfire at the moment. Drive home is about ten miles- if light is still on should I risk that? Seems that its running fine, no horrible noises or alarming signs. Running at right temp etc. ( tried disconnecting the battery to see if it would clear but has come back on) Light goes off briefly at ignition but then straight back on. Advice welcome!

28th April 2017, 13:20	#14
T-Cut This is my second home Rover75 and Mreg Corsa. Join Date: Nov 2006 Location: Sumweer onat mote o'dust (Sagin) Posts: 21,752 Thanks: 341 Thanked 3,660 Times in 2,924 Posts	I believe the EML lights up mainly in reponse to lambda outputs, so that would suggest there's still a combustion/sparks issue (?) TC

28th April 2017, 13:30	#15
Grumble and Grouch Regular poster MGZTT Join Date: Apr 2017 Location: Coventry Posts: 82 Thanks: 6 Thanked 5 Times in 5 Posts	There definitely is, went a bit lumpy again before resolving. I'm beginning to think IMG but confused as to why it's so intermittent. I'll try and have a closer look over the weekend. Thanks.

28th April 2017, 13:38	#17
Grumble and Grouch Regular poster MGZTT Join Date: Apr 2017 Location: Coventry Posts: 82 Thanks: 6 Thanked 5 Times in 5 Posts	I've been checking that after pretty much every journey, appears okay but had clearly been overfilled before I got it as its above the max level. Has been some liquid under the car, presumably from overflow? The HG was done not long ago, before I had it and whilst there's evidence of previous leaks doesn't look like anything new and running at correct temps. Cheers.

28th April 2017, 15:38	#18
Grumble and Grouch Regular poster MGZTT Join Date: Apr 2017 Location: Coventry Posts: 82 Thanks: 6 Thanked 5 Times in 5 Posts	Right- the wires on the turbo injector( four wires coming out on top) are very brittle and one seems to be very loose. I suspect snapped but don't want to pull it! It's the pinky/ black one. Presumably this will mean the turbo injectors don't work properly/ consistently? That could well be the problem? Can't see where the wires go on the other end? What do I need to do about that? Anyone know a good mobile sparky/ mechanic that can take a gander in coventry? Or any incredibly kindly soul? Thanks in advance.

28th April 2017, 16:20	#19
jonno12 Posted a thing or two rover75 saloon connie Join Date: Mar 2011 Location: Solihull Posts: 1,003 Thanks: 78 Thanked 74 Times in 66 Posts	lates are who people from your neck o the woods use they're members on here. very good I believe