850 Potentiometer

[Tony Stafford]

How much should I pay for a new ECU for 850 2.5L 10V.
Can I trust a second hand unit? How much is would this cost?

Regards
Tony

 

[Guest]

How much should I pay for a new ECU for 850 2.5L 10V.
Can I trust a second hand unit? How much is would this cost?

Volvo's price is (wait for it) £540+vat ish- depends on exact year and spec etc...(!!!)

Why do you think your ECU is broken? Have you blown it buggering around with something else? The Fenix units are normally very reliable. (as are the Motronic and Jetronic units on other 800/70 series cars)

Assuming your in the UK, have the ecu checked by atp electronics at one of their test stations (www.atpelectronics.co.uk) for £25. If it is faulty and you have it repaired or have an exchange unit (alot cheaper than 500 notes!)
the test charge is waived.

Tim..

 

[Tony Stafford]

Volvo's price is (wait for it) £540+vat ish- depends on exact year and spec etc...(!!!)

Why do you think your ECU is broken? Have you blown it buggering around with something else? The Fenix units are normally very reliable. (as are the Motronic and Jetronic units on other 800/70 series cars)

Assuming your in the UK, have the ecu checked by atp electronics at one of their test stations (www.atpelectronics.co.uk) for £25. If it is faulty and you have it repaired or have an exchange unit (alot cheaper than 500 notes!)
the test charge is waived.

Tim..

Thanks for your help. It has being suggested by a trusted

mechanic that this might be the problem. Typically when just starting to accelerate from idling the revs fall away. Also, when decelerating towards a stop the engine sometimes cuts out.<br> Thanks again.
Tony

 

[Guest]

mechanic that this might be the problem. Typically when just starting to accelerate from idling the revs fall away. Also, when decelerating towards a stop the engine sometimes cuts out.<br>

You need to read any stored trouble codes to begin with, and check the ignition switch contacts, and main relay as it sounds alittle like the ECU is loosing power when the car cuts. These are both known problems.

With an ECU either they work, or they dont. Very very rare to have intermittent running problems with them.

Other than that, check the vacuum line from MAP sensor to throttle body. and map sensor connector.

Tim..

 

[Guest]

stuff "

And to add- it would also be wise to check inside the ECU box for water ingress and corroded pins in the base.- pull up the locking lever and remove the ECU to examine.

Tim..