Hi All,

Last night I was driving my car and it juddered and then when I got to the traffic lights it started trying to cut out then reving high on its own then cut out and wouldnt start again. The AA came and had a quick look and they said it looked like something had been rubbing on the TDC sensor and thats what the prob was. Are the TDC sensors the same on all cosworths so I could borrow a friends to check it is def that before buying a new one?

Thanks,

Dan

 

whats tdc just out of interest

ive always thought thats what used for linging up cambelts

top dead centre

do you tps throttle position sensor or crank sensor

 

I couldn't tell you mate - I just know the AA guy said it was called the TDC sensor that looked like it had gone so I was hoping it was the same on all cosworths before I buy one. They are Ł90 from ford

 

tdc sensor is "crank sensor". same on all cossies, about Ł30 from stu.

 

Thanks for the replies . Is the crank sensor the wire that connects to a white plug just near the radiator and the other end goes into a brown connector just near the injectors?

Thanks,
Dan

 

Is one end of the crank sensor the brown bit I have circled in this pic?

 

No mate thats a vac hose into intle manifold, I recognise that pic

 

is that the area something has been rubbing?? as the crank sensor aint there, just the ACT sensor Or Throttle Position Sensor Or Idle Speed Control Valve

 

Hi Damo,

Thanks for that, I forgot to mention in the post it was your pic . Can you see the crank position sensor in the pic I have posted or is it nowhere near that area?

Dan

 

i shall find a pioc for you maste

 

cps is under the car on the bottom pully

 

Not that this pic matters, but look at the difference between the two in a couple of months lol, you can JUST about see the plug on the side of the inlet for the ACT sensor though



Right see this pic, see the BIG pulley at the bottom, thats the crank, see the white thing with the white wire going up behind the dizzy, thats the Crank Postion Sensor, when you fit the new one it has to be "gapped" the correct distance from the pulley mate

 

or the fookign car wont start as it has no spark

 

Thanks for the replies guys . I hate problems like this when it works fine one minute and wont start the next. I turned it on earlier after it breaking down last night and it started first turn of the key and drove 100% fine. The only thing I noticed was that when i wiggle the wires near the injectors it cuts out but there are loads of wires all masked up together so it could be any of them thats the problem. I take it it shouldnt cut out when you wiggle any wires no matter which ones they are?

Dan

 

get some contact grease on them conectors on the injectors and then open ya plug gaps a little more, that way ya will realise if its a weak spark as the larger it is the less likley it will start

 

Right you have a broken wire then, more than likely, get it to stu so he can diagnose it with the computer, ths will help find out what wire it is, DO NOT drive the car hard till this has been done

 

shit ignore my last post, thought ya was the guy with the non starting xr3i

sorry again

 

 

Thanks for the advice guys, I'll get it booked in with Stu when he is back from the ring