[20v] '91 CQ erratic power loss

Christopher Gharibo cgharibo at usa.net
Tue Feb 3 18:07:37 PST 2015


Here are the codes:

00524 knock sensor 1 (g61)
00516 closed throttle (idle) position switch (f60)

Looks like I should just change the knock sensor 

On Feb 3, 2015, at 12:41 PM, John Lagnese <jlagnese at massed.net> wrote:

Considering only partial power loss, I would be much more inclined to agree with the knock sensor as culprit.
----- Original Message ----- From: "Christopher Gharibo" <cgharibo at usa.net>
To: "george" <gstroe at cogeco.ca>
Cc: "20V List" <20v at lists.20v.org>; <quattro at audifans.com>
Sent: Tuesday, February 03, 2015 6:15 AM
Subject: Re: [20v] '91 CQ erratic power loss


> Ok, I will check the codes.
> 
> I just wanted to clarify that when the car "loses power" it's only by about 30%.
> 
> Thank you.
> 
> 
> 
> On Feb 2, 2015, at 10:02 PM, george <gstroe at cogeco.ca> wrote:
> 
> Knock sensors. The symptoms on my car: at constant highway speed the engine will suddenly hesitate for 30 sec to 60 sec then regains full power for a couple of minutes then again, the cycle repeats itself. In city driving at low rev when trying to switch into 4th gear at about 60 Km/h the engine will hesitate and almost stalled, had to downshift or depress the clutch. Check the codes.
> 
> George
> 
> -----Original Message----- From: Christopher Gharibo
> Sent: Monday, February 02, 2015 4:35 PM
> To: <quattro at audifans.com> ; 20V List
> Subject: [20v] '91 CQ erratic power loss
> 
> My '91 CQ drives great with one caveat.
> 
> Most of the time, at full throttle, the car suddenly loses power and regains it all in a matter of seconds. It's as if the ECU is changing to a different program or the AC compressor is kicking in and out, although AC is off.
> 
> Any advice would be appreciated.
> 
> Thank you.
> 
> CG
> 
> 
> 
> 
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