Limp home position. Error???

[daddy5times]

As title guys what is this. (error code1525) and how do I fix it thx also 1550 1526

[Ste]

P1525 air bypass valve system
P1526 air bypass system
P1550 Power Steering Pressure Switch Out Of Self Test Range


I assume you have 2.0 turbo?

Look at post 7 here
http://www.vectra-c.com/forum/showth...94#post1172194

Sounds like the wiring or valve failure.

P1550 - can't say I'm familiar with that one, but can't be that difficult to figure out.

[daddy5times]

No ste 1.8 ls

[Ste]

I am surprised by this on the 1.8

The idle control valve is situated and integrated into the throttle body. If you remove the air duct between airbox and throttle body and watch the throttle position whilst the ignition turns on and off, you should see it move slightly - starting and revving the engine slightly will also cause the butterfly to open more.

My only suggestion (if this is the real problem) would be to remove the throttle body and clean it with either some carb cleaner or with a small paint brush dipped in some petrol.

Make sure the electrical connectors are also sound by removing the multiplug, spraying some contact cleaner (or WD40) onto the metal contacts on both the plug and the throttle body and refit - remove and refit a few time too.


Make sure the throttle plate moves smoothly and across the entire range from fully open to fully closed.

Next step would be to strip down the throttle body controller (not sure if this is feasible) and clean the mechanism or replace it

[daddy5times]

I'll givevit a good clean tomorrow. If these were old faults will they go if I remove battery overnight?

[Ste]

Maybe, but if the fault is still active they will come straight back on.

If the faults are rectified, then they will disappear eventually.