Here's the results for the snapshot I took after it had been running for
a few minutes, though not fully warmed up. Also, I disconnected the
exhaust pipes at the manifold, just in case the converter had plugged
up. No difference.
O2 Bank1/Pos1 2.05 v
Coolant Temp 118.4 deg
Coolant sensor 1.3 v
Throttle pos .7v
Min throttle pos .7v
Battery voltage 13.8v
MAP sensor 21.3 in/HG
AIS position 180 steps
Adapt fuel #1 0us
Adapt Factor #1 0%
Baro pressure 29.4 in/HG
Engine speed 736 RPM
F1 start count 2 starts
F2 start count 0 starts
F3 start count 0 starts
Module advance 20.0 BTC
Charge temp 114.8 F
Charge temp sens 1.5 v
Charge goal 13.7v
Trans fluid temp -126.4 <<< weird, but I don't think this truck has
this sensor
Trans fluid sens 4.9v
Battery Temp 95 deg
O2 Bank2/pos1 0v <<< This truck only has one 02 sensor
Adapt factor #2 0%
Adapt fuel #2 0us
Closed loop no
MAP sensor 3.1v
02 Bank1/pos1 rich
Vacuum 8.0 in/HG
Throttle open 0% WOT
Total advance 20.0 BTC
02 Bank2/pos1 Lean <<< This truck only has one 02 sensor
Injector PW #1 5.5ms
Fuel sensor 2.48v
Bob Tom wrote:
>
> At 04:25 PM 7/13/02 -0500, you wrote:
>
>> I put a fuel pressure tester on it and I get 35-40 lbs as it's idling.
>
>
> That sounds normal for your model year. The proper amount
> should be getting up to the fuel rails. Question now becomes
> is the proper amount coming through the injectors.
>
>> Here's a weird thing: I can monitor the sensor output as the engine
>> is running, but I can only 'scan' the computer once, then I get
>> 'Vehicle is not responding'. In order to get another scan, I have to
>> re-initialize the scanner. I'm using an Auto X-ray EZ Link scanner.
>
>
> I tried this scanner many years ago. I often got this message on the
> first day and returned it. I think it was because the scanner's
> connector
> that plugs into the Dak's data line connector is really poorly made
> (poor manufacturing quality control). I went to a high-end (read
> expensive)
> scanner and had no problems.
>
> It could be, for whatever reason, that the timing is out of whack but I
> would have expected that there would be noises (misfiring, etc.).
>
> Do you have a reading for the tps, the pulsewidth of the injectors and
> the MAP sensor at and just after 800 rpms? Is there any smoke coming
> out of the exhaust pipe when it is stumbling?
>
> Bob
>
>
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:05:04 EDT