5KTQ hesitates, makes popping sound, error 2141

[Joshua Van Tol]

Popping noises usually indicate lean running, not rich running.


On Monday, March 31, 2003, at 10:41  PM, Bernard Littau wrote:

>
>> - 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
>