180 starting issues

grimmy · 21-09-15, 08:58 PM

As a few of you know I bought nors silver 180.the car has always seemed to have a vis issue and no end of swapped plenums and vis motors cured it.so I decided to change the engine loom and all was well car started first time and vis problem was gone and ran the car for nearly an hour with no issue.however tonight decided to go and finish buttoning up all the last wee bits like engine cover and air filter refitting and the battery was flat.no problem jump started the car and it started perfectly ran for 30 seconds or so then died and now won't start.it cranks over fine but won't fire it read crank sensor on the code reader which I cleared and never came back but no dice it still won't fire.so any ideas.immobiliser taking a mad turn due to flat battery? There hasn't been an issue with any codes until it conked out.all connectors are connected fine any other ideas?.

M17TT180 · 21-09-15, 10:05 PM

Crank sensor?

Mark S · 21-09-15, 10:34 PM

you cleared the crank sensor eml fault, it hasn't started since?

crank sensor imo

grimmy · 22-09-15, 06:04 AM

That is what I would think as well but it seems to much of a coincidence that a perfectly working crank sensor would give up after the car was started after changing the loom and the battery being dead and it now shows no fault code.

Rockey5uk2001 · 22-09-15, 06:40 AM

Quote:

Originally Posted by grimmy

That is what I would think as well but it seems to much of a coincidence that a perfectly working crank sensor would give up after the car was started after changing the loom and the battery being dead and it now shows no fault code.

Funny things happen in the joys of motoring mate

petet16 · 22-09-15, 10:05 AM

Are all the earths good,

grimmy · 22-09-15, 10:10 AM

Quote:

Originally Posted by petet16

Are all the earths good,

Yeah all seems good Pete.cranks great but doesn't fire.

glane85 · 22-09-15, 11:33 AM

No idea what the problem is, but from what I've read about the KV6 if the ECU sees any fault from the crank sensor it prevents the car from firing. That info was from a Freelander KV6 manual, but I imagine it is the same for any KV6 regardless of which car it is mounted in. I think from memory, if it detects a fault with the crank sensor while the engine is running, the ECU also shuts the engine down too. Could be a problem with teh sensor itself, or the wiring/connection to the sensor? There have been a few threads in the past on several MG sites, where people have said "car won't start" or "car cut out", and advice has been to clean the crank sensor. Apparently it can become dirty within the housing and a good clean can help. No experience of this personally, but just relaying info that may help...assuming it is true, of course!

petet16 · 22-09-15, 11:47 AM

Have you checked that the fuel cut off switch behind the centre console hasn't been tripped ?

grimmy · 22-09-15, 12:11 PM

Quote:

Originally Posted by glane85

No idea what the problem is, but from what I've read about the KV6 if the ECU sees any fault from the crank sensor it prevents the car from firing. That info was from a Freelander KV6 manual, but I imagine it is the same for any KV6 regardless of which car it is mounted in. I think from memory, if it detects a fault with the crank sensor while the engine is running, the ECU also shuts the engine down too. Could be a problem with teh sensor itself, or the wiring/connection to the sensor? There have been a few threads in the past on several MG sites, where people have said "car won't start" or "car cut out", and advice has been to clean the crank sensor. Apparently it can become dirty within the housing and a good clean can help. No experience of this personally, but just relaying info that may help...assuming it is true, of course!

all info helps cheers.like I say looking at any avenues TBH

Quote:

Originally Posted by petet16

Have you checked that the fuel cut off switch behind the centre console hasn't been tripped ?

That's another thing I was think pete.don't know how it would have got tripped but another thing to look at.just trying to list as many ways of attacking as I can won't get to it until the weekend as its in the garage which has a slope in to it so if I can't get it started I can't get it back in there.