3800 Help!

[Toasty]

Hey everybody


Just recently swapped out bad trans in my 97 gtp. after everything is back together (took trans out from below, leaving engine in place) i dont have any boost registering on the DIC gauge. no aftermarket gauge to compare to. I looked at all of the the vac lines, and they appear to be where they belong. Can someone suggest what i should be looking for next as to a possible cause? I dont show any SES light on the dash, so the evap system seems happy. is there a good way to test the lines/elbows for leakage when it's just idling?


any ideas?

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[Mike K]

Inspect the MAP sensor, it's vacuum lines, and electrical connections.

 

[Toasty]

Inspect the MAP sensor, it's vacuum lines, and electrical connections.
[/b]

It's vaccum lines? there's just one on that one, isnt there?

i wouldnt be completely surprised if there is a leak back there, p/o removed the mouting bracket that holds the MAP and evap sensors back there, so they're just along for the ride.

what's the best way to check the lines for leaks?

 

[Toasty]

i'm gonna inspect the MAP sensor after work, but wouldnt a bad MAP sensor/leak there cause an SES light??

 

[Toasty]

i'm gonna inspect the MAP sensor after work, but wouldnt a bad MAP sensor/leak there cause an SES light??
[/b]

before i looked at the MAP sensor, i saw this... (BBV sensor) is there supposed to be something on that top nipple?

 

[CoolGTX]

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i'm gonna inspect the MAP sensor after work, but wouldnt a bad MAP sensor/leak there cause an SES light??
[/b]

before i looked at the MAP sensor, i saw this... (BBV sensor) is there supposed to be something on that top nipple?
[/b][/quote]
nope, its supposed to have a piece of foam over it.

 

[Toasty]

does the dic get an electronic signal to display the boost, or is there actually a vac line that runs in the cabin to it?

 

[CoolGTX]

does the dic get an electronic signal to display the boost0
[/b]

 

[Toasty]

<div class='quotemain'>
does the dic get an electronic signal to display the boost0
[/b]

[/b][/quote]



yeah, stupid me, not sure why i thought it would be mechanical