Hi Guys
> At wits end with my car, I've had it to dealers twice in the last few
> weeks with a failed water coolant sensor, first time it went got all
> kinds of strange problems revving engine lights fading ABS light on
so
> took it to volvo who read code 123 replaced the temp sensor and all
> was well for 2 weeks, dreaded lambda light came on (no symptoms car
> was running perfectly) so I pulled over switched off the engine
> cooling fan remained on car would not start again, the AA arrived 90
> minutes later and the car started no problems, temp gauge went to 3
> o'clock cooling fan ran constantly, drove to volvo no problems
> whatsoever other than cooling fan running constantly, volvo said "ok
> maybe a faulty sensor" they fitted a new thermostat and a new sensor
> and sent me on my way all was well for a month then exact same thing
> happened light on cooling fan stayed on, so I bought a sensor myself
> and fitted it, it ran for 15 mins before wrecking the new sensor,
> checked all the wiring apart from a tiny nic in the wire at the
> connection all seemed ok, tested the voltage coming from ECU and it
> reads around 5 volts, Volvo now want to fit a new ECU although they
> admit that this might not be the problem, anybody got any ideas, or
> should I go for ECU replacement.............please help I love my T5
> dearly