850 Potentiometer

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

 

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..

 

Tim (Remove NOSPAM. Registry corupted, reformated HD and lost alot of

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

 

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..

 

" Tim (Remove NOSPAM. Registry corupted, reformated HD and lost alot of
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..