Stratacous

In August I started loosing gas mileage in my 06 xB. I had a whole new exhaust system put in starting with the exhaust manifold all the way to the muffler. New O2 sensors put in as well. The problem was halfway fixed after that. I was still about 20 miles short on a full tank. This week my mpg has dropped drastically! I'm getting about 280 to a tank when I used to get 340. As I was driving tonight, my radio turned off like it lost power (but nothing else in the car did) and four lights popped up on my dash. They were VSC, the car sliding image, ABS, and trac off. They all stayed up until the radio regained power. I know a little bit about cars but this is beyond me. Any thoughts or suggestions?
-Strat

rickd

it could be vvt-i gear kinda like the way a vtec motor works on a honda that gear advances the timing during acceration to give the motor more power and with out that working properly your box will burn more fuel.

2stroked

First, what codes show up? Go to most auto parts stores and they will read them for free.

rickd

it's p0012

2stroked

P0012 TOYOTA - Camshaft Position 'A' Timing Over-Retarded Bank 1

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3





Possible causes

• Dirty or low engine oil
• Faulty variable valve timing (VVT)
• Faulty oil control valve (OCV)
• Variable Valve Timing (VVT) harness is open or shorted
• Oil Control Valve (OCV) harness circuit is open or shorted
• Damaged ECM