[Vwdiesel] TDI power

[Harmon Seaver]

    I think it looks like the clogged instake, the MAF, and possibly stuck turbo
vanes. He says definitely no power over 3000, and suspects also the turbo
because he doesn't hear it whine so much anymore, although he also said the
power seemed no different than when he bought it (with 107K on it), so the
intake and MAF were probably already a problem. He also said he mostly kept it
under 2000 when driving (he was used to driving a Land Rover and Ford Expedition
with big V8's) which he thought was correct since there was no high end power.
   I explained to him that generally any small engine should *never* be driven
under 2000 lest you burn the valves, although the TDI might be somewhat of an
except since it's peak torque is at 1900, unlike the other vw diesels with a
peak torque around 2400, but I certainly wouldn't drive at less than 1900.
   Could be too, I'd think, that driving around mostly that slow would cause the
turbo vanes to freeze?


On Wed, Jan 22, 2003 at 11:47:45AM -0500, LBaird119 at aol.com wrote:
>   Have him try turning the key off and back on quickly when it's down on
> power
> and see if it comes back up until a certain point.  This worked on Dad's
> Passat, which then let me know it as a "fault" causing the pump to go into
> limp mode.  On the Passat there's a valve on the firewall that then goes to
> the pressure sensor in the ECU.  The hose was kinking since it comes over
> the top of the valve and loops clear around to come into the bottom of it.
> How about at least a 90 for the inlet so the hose doesn't kink? :P
>   Turning the key off resets the limp mode and it might have more power,
> until he hits the "fault" condition again.
>      Loren

--
Harmon Seaver
CyberShamanix
http://www.cybershamanix.com