hi guys/gals...

Just a quick 1, the car i have is a 3 door coinverted to 4wd with a escos 200 block engine in it...it has a crank sensor bracket and obviously the wrong sensor for the bracket so it's been spaced back loads to compensate.

I've been told that the crank pos sensor is meant to be set at 0.4 -1.0mm so maybe if its not spaced right could this cause it to (when warm) give off a weak signal as my cars playing up (dying out at 4-5k rpm) when warm...its fine when cold though :S

I'm just thinking that the car could rely on the phase sensor upto a certain rpm? and when hot cant cope/give a signal to ecu so is cutting out? or does the ecu need both crank pos and phase sensor to run?

Cheers
Dan

 

definitely needs crank position/speed sensor to run at all times.

it can keep running (dependant on management) without phase sensor once it's started if it had the signal from it.

your problem does sound like it's a crank position sensor problem, but why guess? there is such a thing as a diagnostics output from your ecu.

 

alright mate i'll put on the computer if you like!

 

0.6-1.0mm the gap. if yours is not change it.


if not test the tdc sensor with a ohm tester at ecu plug pins 3 and 4, should be 600-1000 ohms resistance across it, if that ok. your have to look else where, but get a mate to wiggle tdc wires to see if restance changes to check wiring.

you could also check the resistance on the phase sensor at ecu plug, pins 5 and 23.