CO2000A418T

How small a leak can cause these codes, and is looking for a leak the right approach? Searching the forum it seems all these can be caused by hose leaks. I spent a portion of today disassembing, inspecting and reassembling the intake side and the big turbo hoses. But these codes came back. If it matters the CEL came on while at idle after a 40 minute drive in which the car seemed to be working fine.

I seem to have a problem with hose clamps loosening over time. What do you use in place of cheap hose clamps and where do you buy them?

Guess I'll spend some time tommorrow on that mess of vacumn lines at the rear of the engine and attached to the manifold...

Thanks for any help or ideas.

16825 - EVAP Emission Control Sys: Incorrect Flow

P0441 - 35-00 - -

17965 - Charge Pressure Control: Positive Deviation

P1557 - 35-10 - - - Intermittent

17544 - Fuel Trim: Bank 1 (Add): System too Lean

P1136 - 35-00 - -

BigEd

It might take you forever to find a leak via visual inspection.

CO2000A418T

Works ok for finding pressure leaks in the big hoses. But the smaller vacumn lines, with all the check valves in the way, are a different story.