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post #4 of (permalink) Old 5th February 2009
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Hi Chris,

Does sound like it's in limp home mode.
A common problem with the laguna II's is for the contacts to corrode on the ECU as it's situated under the battery tray. If you disconnect the wiring from the ECU and give it all a good clean it might solve your problem. When the contacts corrode the ECU get all sorts of weird fault codes and normally goes to limp home mode. Most of the time the throttle pedal will become inactive and the car will sit between 2 and 3k revs. There have been members on here which have had alsorts of parts replaced for the problem to only coome back. Worst case is a new loom if the contacts on the ECU are really bad. I hope not for your sake!

Failing that you could have a faulty throttle body as the car uses a 'fly by wire' system. Check all the coil paks to just to make sure one isn't faulty. This is another common fault and will cause the anit pollution light to come on as fuel will be entering the CAT.

Let us know how you get on.

Understeer is when you hit the wall with the front of the car.
Oversteer is when you hit the wall with the rear of the car.
Horsepower is how fast you hit the wall.
Torque is how far you take the wall with you.

PSN: MEW1980
Currently in Mikey's garage:
1996 Mazda MX-3 V6, a 2002 1.2 8v Fiat Punto active (the Wife's!) and a 1998 Suzuki GN 125. Used to own a 2002 Laguna II Dynamique 1.8 16V (Now Sold yey!)
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