Coolant temperature sensor fault causing low boost

Phil and Judy Rose pjrose at
Sun Jul 11 02:27:41 EDT 2004

At 10:02 PM -0400 7/10/04, TM wrote:
>I've recently had a problem with low boost and poor
>boost ramp-up, seeing only 10psi constant after a long
>time of WOT. Just after observing this problem intermittently
>a few times, I had a radiator neck failure, so I wasn't sure
>if the two events were connected.
>Now following the radiator replacement, I've found that I still
>have a low boost problem after the engine is hot- pulled codes
>and found coolant temperature sensor, intermittent fault.
>Doing the Bentley diagnostic, it seems like the multifunction temp
>sensor is fine, this doesn't really make sense.

I'm not sure what the Bentley "diagnostic" is. My own diagnostic 
procedure is simple: pull the connector off the MFTS. If that cures 
your low boost problem, replace the MFTS.

*  Phil & Judy Rose           Rochester, NY  *
*        mailto:pjrose at       *

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