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Dan, Technician
Category: Volvo
Satisfied Customers: 24427
Experience:  Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
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I have a 2000 v70 Classic 2.4 with code Po505 Engine ideals

Customer Question

I have a 2000 v70 Classic 2.4 with code
Engine ideals fine but eml light comes on
Have cleared code but light returns after third start up
Can't work this one out please help
Submitted: 1 year ago.
Category: Volvo
Expert:  Dan replied 1 year ago.

Hello, my name is***** code usually means the Air assisted control valve has failed. At the Air Assisted Control Valve (AACV), verify there is 12 V on the Green/Orange wire. Verify good ground on the Brown/Black wire. If possible, activate valve with scan tool. When doing this, idle RPM should jump at least 300 RPM. If it does not, replace the AACV. Let me know how it goes or if you have more questions, thanks.