I would check that.  I thought the digitool's reading would tell me that but
I didn't get the instructions with it.  And apparently the ECU is bad.
First time I used it the engine started missing at about 3k, second time,
months later, it ran fine.  This time the missing is back.  Rats.

I thought there were really only two sensors, 1 wire and 3 wire.  Some off
brands but I got Bosche.

Thanks,

Mike

On 2/28/04 7:44 PM, "John Connolly, Aircooled.Net" <john@aircooled.net>
wrote:

> sounds like an O2 sensor to me Mike. I went thru the SAME THING. This is
> common if it's not the "correct" sensor.
>
> The next thing to check is a bad temp sensor (coolant).
>
> john
>
> ----- Original Message -----
> From: "Mike Miller" <mwmiller@cwnet.com>
> To: "John Connolly, Aircooled.Net" <john@aircooled.net>
> Sent: Saturday, February 28, 2004 8:42 PM
> Subject: Re: Bad gas mileage/ecu
>
>
>> Bought a Bosche from the FLAPS.  Single wire.
>>
>>
>> My live in mechanic thinks it might be the throttle position switch.
> Would
>> that being bad/misadjusted cause the mileage drop?
>>
>> Mike
>>
>> On 2/28/04 6:22 PM, "John Connolly, Aircooled.Net" <john@aircooled.net>
>> wrote:
>>
>>> What O2 sensor did you install?
>>>
>>> john
>>>
>>> ----- Original Message -----
>>> From: "Mike Miller" <mwmiller@CWNET.COM>
>>> To: <vanagon@GERRY.VANAGON.COM>
>>> Sent: Saturday, February 28, 2004 6:35 PM
>>> Subject: Bad gas mileage/ecu
>>>
>>>
>>>> Volks,
>>>>
>>>> My 84 Westy is getting 15-16 mpg.  Bad.
>>>>
>>>>
>>>> Put my digitool in there, looked like the O2 sensor was bad. Changed
> it.
>>>>
>>>> Same mileage.
>>>>
>>>> Put digitool in and the engine starts missing badly from 2800-3000, OK
>>> above
>>>> and below.
>>>>
>>>> Readings on digitool
>>>>
>>>>
>>>> T1  .92-.95
>>>> T2  .13-.14
>>>> O2  0-.75
>>>> AFM 1.57-1.61 at idle up to 3.5 plus at 4000 rpm.
>>>>
>>>>
>>>> f1 flickers
>>>> f2 steady
>>>>
>>>> Any ideas?
>>>>
>>>>
>>>> Mike
>>>>
>>>
>>>
>>>
>>
>>
>
>
>