Engine Problems/ wont start

[picklesayrshire]

I got my car bk from the clutch centr after having the clutch replaced and the guys wr sayin it was idling badly, noticed a couple of loose wires to the left of the throttle body which i plugged into what i think was the MAP sensor, this cured the idling problem, but whn i was driving home yesterday the car cut out 3 or 4 times, i managed to fart about with it and get it going again but it cut out again further down the road, the Engine management light comes on and theres a dull thud sound b4 the car loses power and cuts out.
Could it be a sensor problem or perhaps an immobiliser fault, its a 1997 VTS with keypad immobiliser but when i put the code in it seems ok. Please Help !

[woody813]

looks like a sensor problem pal?

Its try idle control valve.. i'd just take the throttle body of, clean it, and try test the air sensors and plugs, just as a place to start...

[picklesayrshire]

tryin to get a hold of a diagnostics tool, should pinpoint any problems hopefully, managed to drive it home again but it seems to cut out after a while, ive noticed a wire going from a sensor down at the bk of the engine wot i think mite be a lambda, which has a shoddy soldered connection and runs into the passenger footwell compartment wr there is a few cut wires. but surely the sensor would not be fed from the fusebox, i would have thought it wud have came from the ecu.

[picklesayrshire]

oh and my speedo isnt working either, if that helps.

[666]

sound like thay havent wired it back up right, check all sensors and wires on the gearbox

[m11kvy]

deffo not your alternator leads being a twat? this happened to me at christmas but it was all beacuse the alternator leads were a bit of a shit connection.

[picklesayrshire]

sound like thay havent wired it back up right, check all sensors and wires on the gearbox


what sensors are on the gearbox

[666]

iirc the main 1 is the flywheel sensor, if damaged or not fitted 100% can lead to loads of probs, it sits were the gearbox and block meet on the front of the engine

there is 2-3 sensors thow plus earths etc so worth looking at all

(been a wial since i did the cluch on the vtr so ant be more spesific)

[Wizzy]

Might be a bad earth, check all the earth straps round the engine bay. Also check all the wiring to things like the starter motor and anything thats been disturbed when they did the clutch and make sure they are tight.

[BobC]

Hi,
Is there a box with a round knob on it somewhere near the front dash.

It could be that someone has tried to fit one of those so called performance devices off ebay.

[picklesayrshire]

Hi,
Is there a box with a round knob on it somewhere near the front dash.

It could be that someone has tried to fit one of those so called performance devices off ebay.

no not any piggyback devices.

[BobC]

Hi,

I am guessing it was ok before the clutch change? Can you get a picture up of the sensor with the bad soldering?
Perhaps the garage damaged a wire removing the gearbox as it is easy to do.
Probably the air temp sensor or coolant temp sensor.

[picklesayrshire]

Hi,

I am guessing it was ok before the clutch change? Can you get a picture up of the sensor with the bad soldering?
Perhaps the garage damaged a wire removing the gearbox as it is easy to do.
Probably the air temp sensor or coolant temp sensor.

kl will do as soon as bud.

[picklesayrshire]

Just thought to add that wen i disconnect my battery for a while it sumtimes starts, i was taking it that this would reset the ECU

[666]

correct mate, it will clear all fault codes, untill it gets another and plays up again

[picklesayrshire]

also noticed that my speedometer isnt working as well, could it b the vehicle speed sensor, would this stop the car from starting.

[666]

tbh i dont think it will affect it but not 100%, are all the sensors pluged in and undamaged?

[picklesayrshire]

tbh i dont think it will affect it but not 100%, are all the sensors pluged in and undamaged?


yeah am sure all the sensors are plugged in, will defo get pics 2moro.
but im sure theres a wire goin from a sensor at the bk off the engine (rite dwn at th bottom and up into the passenger footwell wr it appeared cut.
im sure it was like this when i got it (2-3 month ago) but its just started causing problems.

[666]

like i said the main sensor is fitted to the join of the engine/gearbox at the front, its held in with 1 torq bit iirc, if thats damaged(so easy to damage this 1) it will cut out etc, pop it out and make sure its not damaged

if you were closer i would have had a look

[picklesayrshire]

like i said the main sensor is fitted to the join of the engine/gearbox at the front, its held in with 1 torq bit iirc, if thats damaged(so easy to damage this 1) it will cut out etc, pop it out and make sure its not damaged

if you were closer i would have had a look

will have a look 2moro n get sum pics up, how will i know if its damaged will it be obvious or will i need to test it in some way

[666]

iirc theres a small thin metal tip on it, you should be able to see it its damaged, have a look at the wireing for it to, when i was fitting mine the plug for that sensor keeped droping in to the closeing gap and nearly got cut off a few times, it plugs in to the loom about half way across gearbox so ay be lose there

[picklesayrshire]

iirc theres a small thin metal tip on it, you should be able to see it its damaged, have a look at the wireing for it to, when i was fitting mine the plug for that sensor keeped droping in to the closeing gap and nearly got cut off a few times, it plugs in to the loom about half way across gearbox so ay be lose there

i think i know wot u mean, ive seen 2 connectors down below the air filter between the engine and battery but they appear to be fine

[666]

its in the red area mate

http://i401.photobucket.com/albums/pp99/6666969/IMG_2174-vi.jpg

[picklesayrshire]

thanks alot m8 for all ur troubles btw, i think i know what 1 ur on about, al get in about it tomoro and let u know.

[picklesayrshire]

got some pics on photobucket, cant upload them here

http://i721.photobucket.com/albums/ww218/ccairney/IMG_0468.jpg - this 1 is the sensor i think is suspect as it appears to be taking a feed from inside th passenger fuse box somewr

[picklesayrshire]

dunno if this will work but heres more pics of various sensors and wiring
http://s721.photobucket.com/albums/ww218/ccairney/

[picklesayrshire]

its been joined in with an orange wire numbered 230

[picklesayrshire]

forget that last post, i found a sensor plug with a brown and a green wir( i think this is the speed sensor) hanging loose undernath the car but theres also another 1 wich had only 1 pink wire on it wi pa 1147 written on it, bn thru the haynes manual and cant find it but im sure this must be the cause of the bothr.

[picklesayrshire]

rite av found some damaged sensor plugs underneath the car and 1 which wasnt even plugged in. 1 had 2 wires (brown and green) which i thought to be the engine speed sensor or knock sensor. i also found a damaged plug which has only 1 pink wire connected although its a 2 wire plug. i found some kind of sensor while i was underneath that had a 2 pin connection so i just plugged the 1 with the brown n green wire in but cant find any other sensors for the other plug i have with the single pink wire, been thru the haynes manual to no avail.
car does start and idles around 1000 Rpm which is a tad high is it not. but i know it will cut out again so i dnt want to drive to far in it.

[picklesayrshire]

bumpage

[BobC]

Hi,

Ok, well done you've got it started. The single pink wire in a two way connector maybe the coolant temp sensor. If so it will be blue and goes onto a green sensor connector behind the thermostat.

Can you describe what else you have not connected and is loose?

If you give me the year of the VTS I can look at the right diagrams. Haynes diagrams may only cover models to 1998.

[BobC]

Knock sensor = Red & Green wire, it should be at the back of the engine block.

[BobC]

Engine speed sensor aka crankshaft sensor or TDC sensor = RGR & VER ? RG normally means red and VE green but the wiring may be covered.

1999 model engine speed sensor = brown & green

[BobC]

Vehicle speed sensor = Red, Green/Yellow and Green

[BobC]

I can't see a single pink wire conector as part of fuel injection system.

[picklesayrshire]

im sure the coolant sensor is ok, did u c my pics on photobucket bob, im assuming that the wire that went from the speed sensor to the passenger footwell was for the speedometer which is supposed to be connected to the instrument cluster im sure as my speedo isnt working right just goes up to bout 10 mph, as for the single pink wire, cud it be for the canister purge solenoid and maybe the green is missing from the fuel injection main relay.

[picklesayrshire]

oh and its a 1997

[BobC]

Hi, Earliest diagrams I have ar for Jan 1998 so should be fine.

Good shout by 666, he was bob on with regard to the engine speed sensor. This was causing your car not to start.

I'll see if I can find the canister purge valve.

[BobC]

Ok, canister purge valve has two wires, pink and green.

[picklesayrshire]

Ok, canister purge valve has two wires, pink and green.

yeah but iv no idea wot this looks like or wr it is located, gna google it just now.

[BobC]

Speedo,

This is fed from the vehicle speed sensor (not the engine speed sensor). This sensor sits on top of the gearbox, behind the clutch cable. It has a three way connector with three wires:

Green
Green/Yellow
Pink

[BobC]

Canister purge valve will likely be inside the drivers wing near the canister.

Digram shows it to the left of the ECU with wiring spliced from the injection relay.

[picklesayrshire]

http://www.106rallyeforum.com/forum2008/archive/index.php/t-23562.html found this, says a bit dwn the page that the purge solenoid mite not be needed and that single wire could be for the oil pressure.

[BobC]

Oil pressure switch - one wire which is brown BUT the temperature sensor & engine oil temperature swtch is one wire which is pink

Seems to plug in on top of the gearbox. I would imagine it'll be on the engine block.

[BobC]

Back in a while, good luck.

[picklesayrshire]

so wr is this temperature sensor & engine oil temperature switch. any ideas

[BobC]

Seems to be under the thermostat and near the top of the gearbox bell housing.

[BobC]

Diagram does show this as a 2 way connector, so this is the one you are looking for.

[BobC]

The connector on the sensor will be blue. The plug is probably the one in your picture "sensor at front behind passenger light".

[picklesayrshire]

The connector on the sensor will be blue. The plug is probably the one in your picture "sensor at front behind passenger light".

but thats the other side of the engine surely not.

[BobC]

Yes it is. I doubt that your unconnected wire has anything to do with the canister bleed valve.

[picklesayrshire]

gna just get it put onto diagnostics i reckon, mite save a lot of hassle, ive reconnected that plug i had off and it starts n that ok just scared to drive incase a break dwn again lol, once av had it on the diagnostics n know for sure al be happy.

[picklesayrshire]

Yes it is. I doubt that your unconnected wire has anything to do with the canister bleed valve.

thats gotta be the oil temp. sensor and temp switch, need to c if a can find it

[BobC]

If you are having trouble seeing below the thermostat housing, then try using an angled mirror.

Edit: I am assuming you are looking for a home for two way connector with one pink wire which was probably removed during the gearbox change.

If so, then look around the gearbox side of the engine.

[picklesayrshire]

If you are having trouble seeing below the thermostat housing, then try using an angled mirror.

Edit: I am assuming you are looking for a home for two way connector with one pink wire which was probably removed during the gearbox change.

If so, then look around the gearbox side of the engine.

yeah, thanks so much m8 uv been more than helpful.

[BobC]

Hi again,

The temp sensor and temp switch sensor seems to be pretty close to the engine speed sensor. Have a good look around that one.

[picklesayrshire]

thanks, i meant to say when i was breaking down, when the warining light came on i heard a dull thuding sound, any ideas wot this could be

[picklesayrshire]

just noticed a lambda sensor near the cat which gas had wires cut, but this must have been done some time ago, so i wouldnt think that to be suspect, still looking for the connection for the oil temp/sw

[picklesayrshire]

still cant find this oil temp sensor and temp switch, i reckon its broke off or sumthin

[picklesayrshire]

still got my car not starting at times, thinkin of changing the ECU c wot happens.

[picklesayrshire]

gotta coil pack this mornin, gna try n replace that n c how it goes.:)