Quote:
Originally Posted by secondchance
That is what she said - I meant Jim said!
After 124,000 miles I figured just replace once under.
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It's basically just a MAP sensor. They are pretty reliable. It measures the pressure to see if the secondary system is being activated. If you take the plenum off, I think you'd be remiss not to check all the vacuum lines and such to make sure the secondary system is in fact operating properly vs just replacing the sensor.
And Jim, don't you have that LT5 emissions training book? That thing has everything about every code you'd ever want to know!
12-21-2011
Re: DTC 56
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