Broken Down again!

[James_N]

Originally Posted by Phil Croxley

Generally a duff CTS makes starting from hot difficult and needs to be left for about 20 mins, but it can also make cold starting difficult. It's amazing how they can affect an engine. My wife's one cost £6 or so from Eurocarparts.

tried again tonight. started first time, but as soon as the car started getting warm and i touched the gas, it died and would not restart. That was with a new fuel pump fuse.

Where is the CTS located? I have ordered a fuel pump relay which will arrive tomorrow so i'll try that but i'm not holding out much hope.

as soon as the temp gauge gets to between a quarter and half way, touch the gas and it dies, so i'm not sure if its fuel related but i'll try the new fuel pump relay tomorrow.

[nutco]

underneath inlet 4, 1 being by the rad, worked for me on my starting then dying and not re starting

[James_N]

Originally Posted by nutco

underneath inlet 4, 1 being by the rad, worked for me on my starting then dying and not re starting

Thanks, as that is where the pipe was that I was trying to replace so maybe I've dislocated something. Problem is you can see very little under there and I'm not totally sure what I'm looking for, do they break easily or is there a connector that I might have dislodged? Beginning to think its the CTS over the fuel pump relay but its hard when you have no idea what you are doing!

[aardvarkash10]

if the temp sensor is duff, the computer reverts to a preset map. In fact, on LH 2.4 you can unplug pretty much every sensor excluding crank angle and it will still start and run albeit not well.

A logical test sequence will be a lot better than guessing here.

Next time it happens, check for spark and fuel. Work backward to identify the fault

[aardvarkash10]

https://www.scribd.com/doc/126885359...anual-Complete

[James_N]

Originally Posted by aardvarkash10

if the temp sensor is duff, the computer reverts to a preset map. In fact, on LH 2.4 you can unplug pretty much every sensor excluding crank angle and it will still start and run albeit not well.

A logical test sequence will be a lot better than guessing here.

Next time it happens, check for spark and fuel. Work backward to identify the fault

Thats very interesting, i didn't know that. so even if i had disrupted a sensor fixing my leaking pipe, the car would still run? rather than running for 5 mins and dying?

My fuel pump relay arrives later so i will fit when i get home, but not holding out much hope that it will fix the problem!

[James_N]

Originally Posted by aardvarkash10

https://www.scribd.com/doc/126885359...anual-Complete

Thanks mate. in that manual it talks about the car having a diagnostics system built in for the fuel system but ive never seen anything like that on my 940?

[aardvarkash10]

Originally Posted by James_N

Thanks mate. in that manual it talks about the car having a diagnostics system built in for the fuel system but ive never seen anything like that on my 940?

Definitely has it - in fact as a 1997 yours MAY be OBD-2 compliant. The history became a little foggy at that stage and most were not. If you look in the centre storage box between the front seats, there is a clip-out panel in the middle at the bottom. Pulling it out reveals the diagnostics plug.

[mocambique-amazone]

Hello James again ;-)

Sorry my fault. I didn't read carfully enough and thought you know it will be a pump related problem.

Your car is with OBD and has the diagnostoc socket covered in the middle armrest.
You will need a obd-reader. The 1997 version doesn't come with the lovely self diagnostic stuff with blink code.

like aardvarkash10 wrote, the LH2.4 system is very simple and easy to find the fault. 99% of all problems are easy to find.

Check first spark if the engine doesn't start.
If no spark, two prob's:
anti-theft-system (1997 will be with)
cps, crankshaft position sensor. At the end of the engine on top of the bellhouse.


you will find a LH2.4 diagnostic and fault finder, even for the later version, in the internet, on my scrappy phone I'm too lazy to find this.

good luck, Kay

[James_N]

i was under the impression that even the later 940s were not OBD2 compliant. if mine is, that would be great, I'd love to just be able to plug one of those readers in and get the code relating to whats wrong! helps a total novice like me!

I'm sure its not the anti theft system (i dont use the fob to lock the car, i just use the key. it starts if left for a bit anyway)