help my car wont rev past 3000 revs

[GTI Tom]

ok so as the title says really my car wont rev past 3000 revs and its puttin loads of smoke out and also stinks of fuel

[gti_marv]

cranshaft position sensor

[scottdonny08]

maybe its gone into limp mode but im not to sure

[gti_marv]

ill bet you its crank sensor

[GTI Tom]

cranshaft position sensor

is this expensive to replace and im gonna try taking the battery off tomorrow

[gti_marv]

nah, go down your local scrappy n pocket one, pretty expensive new but 2nd hand aint dear, make sure you check the plug on ours and get one to mach, theres 2 types,

[GTI Tom]

ok cheers mate hopefully the peugot specialist near me will have one any idea how much roughly and will moving my car damage anything

[gti_marv]

try not to use your car too much as excessive fuelling etc will bugger you catalystic convertor up, but no harm just going from a to b, shoudnt cost you any more than £15, any cheaper and its a bonus, easy to fit too, you know where it at yeah? another thing to try before you go and buy one is take yours out and check if the end has loads of iron filings magnetized to it, if it does clean it off and it will probs work ok, the filings come from your clutch ater a while and cause it to recieve a implausible signal which the ecu will just output a generic value,

[GTI Tom]

try not to use your car too much as excessive fuelling etc will bugger you catalystic convertor up, but no harm just going from a to b, shoudnt cost you any more than £15, any cheaper and its a bonus, easy to fit too, you know where it at yeah? another thing to try before you go and buy one is take yours out and check if the end has loads of iron filings magnetized to it, if it does clean it off and it will probs work ok, the filings come from your clutch ater a while and cause it to recieve a implausible signal which the ecu will just output a generic value,

theres no cat on it anyway so thats not a problem will any crank sensor fit or does it have to be off a gti and no i dont know where the sensor is but my mate should know cheers

[Gina_G]

crank sensor is on front of the car tom between the block and box, there are 2 types of connector for it early style square plug or the newer style oval plug

[GTI Tom]

ok strangest thing has happened have gone to the car today and before i was gonna disconnect the battery i thought i would just run the engine to make sure it hadnt got worse and it ran perfectly so i bought it home and its running fine needs some petrol but other than that seems perfectly fine.
cheers for everyones help and advice happy new year
Tom

[Mathon]

maybe its gone into limp mode but im not to sure

106's have a limp mode?

[gowmonster]

i'll bet its temperature related then, if nothing else has changed, either that or it'll depend on whether its raining.

[gowmonster]

of couse they do, just like nissan skylines

quite a lot of ecu's will cut the revs at around 3000 revs when it detects something wrong, lets you get home

i'd expect the engine management light to be on though....

[GTI Tom]

no lights were lit on the dash it was very cold and icy at 5 30 in the morning and now its running fine only had a nissens radiator fitted the other week with all new coolant hopefully its sorted itself out and i wont have this problem again

[fray_gti]

This is happening to my car and tbh it does come and go! Its not always 3,000 rmp either sometimes 4,000 or upto 5,000 sometimes

Is the crank sensor the 1 with the blue plug on it by the airbox?

Ive got no EML light on the dash either.

[fray_gti]

What colour is the plug on the crank sensor because im not sure which sensor it is? Will i be able to check to see if the crank sensor is faulty?

Thanks

[fray_gti]

anyone??

can't find the crankshaft position sensor on my car!! i can see the 2 down by where the airbox goes (blue and green plug) are either of those it or are those the temp sensors?

or is it on the front of the engine sort of opp the rad more?

Thanks

[gowmonster]

anyone??

can't find the crankshaft position sensor on my car!! i can see the 2 down by where the airbox goes (blue and green plug) are either of those it or are those the temp sensors?

or is it on the front of the engine sort of opp the rad more?

Thanks

is that not the sensor between the block and the gearbox that monitors the crankshaft from the flywheel?

[fray_gti]

Right ive found the crankshaft position sensor the sensor that is right on the joint where the gearbox meets the block. I think thats the right one anyway!!

Is there a way to check if that sensor is at fault it coz if i unplug it the car won't start at all.

Thanx in advance

[fray_gti]

anyone?

also are all the crankshaft position sensors the same on all 106's?

Thanx

p.s sorry 4 hijackin your thread GTi Tom!!

[fray_gti]

Right have found out that my car only misfires and splutters at certain revs (was 5,000 rpm today) when the engine has been running for about 10 mins. Even if i get it to running temp and turn the car off for say 5 mins it will run normal for 10 mins again then start to misfire and splutter at those certain revs again even tho it hasn't cooled down much.

I had a similar problem to this before and it was a loose breather pipe but that has been fixed.

Tis very strange and is doing my head in. If i don't get banned on the 15th and have to sell up ill take her dowm the garage i think 2 get it sorted.

Anyone help?

[Phil]

It's likely to be the crank position sensor - or the coil pack

[fray_gti]

It's likely to be the crank position sensor - or the coil pack

thank you!

is the crank position sensor difficult to change or is it a simple screw out sensor with a plug on?

[lukeyboy 106]

crankshaft sensor will either be one of the earlier square ones or a newer oval one . reletively easy to change and an easy pocket jobbi at a scrapyard

coilpack is also a reletively easy change.

sounds like a faulty connection to me fray , either in the sensor itself or where the loom attaches.