So I threw these two codes on the way to work today and I am trying to figure out what they are for??? I recently replaced the two pre-cat o2 sensors but these are coming up as emissions related also. Any help would be much appreciated. Thanks.

bank 1 and 2 air injection low pressure detected check for pipe off or split

P1411 = bank 2 leak detected
P1423 = bank 1 leak detected

Any area in particular? Boost leak????? I'm trying to trouble shoot on it this tonight...

http://images.google.co.uk/images?cl...a=N&tab=wi

So like a billion different areas could be the problem... GREAT!!!!!

the link is there to show you what your looking at not to point out other problems ( your looking for a leak in one of the pipes )

Well I can't source the leak... I thought I had it but I threw the same codes again on the way into work. Bank 1 and bank 2 are specific to what areas of the block? I really need to get a repair manual...

^Thanks for the help techbod and the sarcasm wasn't directed at you just my car luck his month...

check the t fitting that connects the two secondary air combination valves to the secondary air solenoid. There's a recall on the 2.7 L allroads for that fitting breaking. Take the intake Y pipe off the top of the engine, unplug the pipe for the brake booster and the crankcase breather at the back of the intake manifold. Follow the two vacuum lines coming off of the combi valves to the t fitting and make sure it is still in one piece. If not that make sure your sec air pump is working, check that the combi valves are getting a vacuum supply when the pump is running, and check for carbon build up in the plastic hoses coming off the combi valves. sorry if this isn't to helpful, it's either to fix it than to describe how to fix it sometimes. good luck

^bump

- I will try that this weekend. Thanks for the help