replacemnet ECU

[stuart edwards]

hello folks i have a troublesome TDI alhambra Se , i have the power loss at 3000rpm and have had the N75 valve replaced but still have the problem, my local dealer has been superb in trying to find the problem but are hinting at the ECU being the root of the limp mode dropping in , has anyone has an ECU replaced for this reason?

cheers

stuart

 

[yellowperil]

Send me a few details mate i might be able to help
BHP
Year
ECU number etc

 

[ini]

Check normal PD 'limp mode' culprits.

Dirty or worn MAF, clean the element with a residue free solvent (spray carb cleaner through it) unplug it and see if the car runs any better on the default map. If the car seems 'the same'/smoother/better with the maf disconnected, buy a new one.

VNT mechanism sticking, move the actuator rod in the middle of the turbo by hand, and ensure it has a good range of motion.

Check for boost control tube leaks (around N75 etc), also check the N75 is plumbed in correctly.

Check you MAP sensor.

Check temp sensors.

Check crank position sensor.

 

[TDC]

My 100pd is limping since i remapped it - i notice the temp gauge has always read 60 ish , 90% of the time, anyone know where the temp sender is located ? sorry for hijacking uit i was searching for a cure when i found this thread & noticed INI's comment about check temp sensors !!

 

[glynnd]

Looking at the block it will be right hand side back corner

 

[TDC]

thx glynnd i'll check it out..

 

[stuart edwards]

ECU information

Send me a few details mate i might be able to help
BHP
Year
ECU number etc

hello, i have just picked up on the replies the my problem, i will get the serial nunber off the ECU tomorrow and post the info, its a 2001 model 115 BHP

cheers

stuart

 

[goble]

@ 3000 rpm its going to be airflow meter
if a fault code comes up saying boost pressure limit exceeded then it will be a duff turbo as the wastegate is sticking

 

[stuart edwards]

the ongoing problem

hello i have a newer alhambra now the 2001 TDI se model and its making my head hurt , i have read about checking an actuator rod , part of the turbo to see if it moves , how do ai acess this please

cheers

stuart

 

[goble]

from underneath

but will bet you its going to be airflow meter.

ive changed 3 recently for the same problem

 

[stuart edwards]

the ongoing problem

hello, i have had the MAF replaced at the start of hunt the faulty bit, i am afraid it didnt make it better, i fitted one to my old alhambra when it went flat and that sorted that car out but no luck this time

cheers

stuart

 

[stuart edwards]

re possible faulty ECU

Send me a few details mate i might be able to help
BHP
Year
ECU number etc

hello, the serial nunbers on the ECU are as follows

038906019FC and below that

diesel EDC 15P+ 1455

again any help is much appreciated

cheers

stuart

 

[yellowperil]

If your only from York mate then give me a call i am just down the A64 towards Scarborough.
Can clone your details onto a spare ECU if needed and see if that cures your problem

 

[stuart edwards]

ECU problem

hello, i would be geat to talk to someone about my troubles, i have been offered second hand ECU from a breaker in accrington but as for getting it to work on my car thats the work of the devil , i have a good mate who is a top man in this area but i need to be able to give him as much info as possible to cut down his work as he is really busy mending diagnostic equipment for various people, my phone nunber is 01347 822596 and i will be in later tonight and saturday am any help is much apreaciated

cheers

stu

 

[ini]

Does the power loss occur in high gears only, or does it also happen in 1st & 2nd?

 

[stuart edwards]

Re Which Gear Is Goes Wrong In

hello it seems to trip out in any gear i think i wiould have to road teat it to be totally certain

cheers

stuart