5KTQ hesitates, makes popping sound, error 2141

[cjcasati at hotmail.com]

Hi all,

this is a follow-up for the archives: See below for symptoms, it got worse
since April but I fixed it this morning when I replaced the ignition wires
and plugs. The car sctually began to stumble and sputter... I need to put
hose clamps around that intercooler though...

Thank you as always,

Christoph
1986 5KTQ 180K Charlie Spring

----- Original Message -----
From: "Bernard Littau" <bernardl at acumenassociates.com>
To: <cjcasati at hotmail.com>; <quattro at audifans.com>
Sent: Tuesday, April 01, 2003 12:41 AM
Subject: RE: 5KTQ hesitates, makes popping sound, error 2141



> - hesitates, then engine catches on
> - under full throttle hesitation gets worse, popping sound from underneath
> the hood, check engine light comes on briefly
> - pulled error code 2141 (knock sensor max, timing fully retarded)
> - in the early stages the hesitation occured only when cold but the car
> didn't pull that strong anymore during warm acceleration.
>

Hi Chris,

Sounds like a leak in the air intake system between the output of the turbo
and the intake manifold.  It is quite likely that you blew your intercooler
or one of the hoses.  All the popping and such is likely from running way to
rich due to loosing metered air.

Check the intercooler and Michelin man hose for starters.

Good luck,

Bernard Littau
Woodinville, WA
'88 5ktq