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Discussion Starter #1 (Edited)
Thanks for this great site.
i think i've read most of the posts dealing with engine surging, but mine has trouble codes that are different.

'97 zr2, 4.3, 250k miles.
has been surging badly at shift points when 1600-1800rpm. idles fine.

codes are listed below.
thanks for a review

suggestions?
i can't see how to delete the duplicate pictures.


1997 Chevrolet S10 ZR2 4.3L V6.
1/22/2020.

Diagnostic Trouble Codes
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P0102, Mass Air Flow/Volume Air Flow: low input

P0103, Mass Air Flow/Volume Air Flow: high Input

P0146, Heated Oxygen Sensor (HO2S) Circuit Insufficient Activity
Bank 1 Sensor 3

P2218, Nitrogen Oxide Sensor, Bank 2, Heater Control, Open Circuit

C3000, Incorrect Shift from Gear

P001E, Intake Camshaft profile control A, Bank 2, Circuit Low


P1870, Transmission Component Slipping,
Or Transmission Mechanical Transfer Case 4x4 Switch Circuit Failure

P0128, Transmission over temperature condition
Or, Coolant Thermostat Below Thermostat Regulating Temperature

P0318, Rough Road Sensor A, Circuit Malfunction

PO218, Transmission over temperature condition

C06BA,
--//------------------------
 

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Discussion Starter #2
screenshots were taken at about 45mph, 1700rpm.

sorry about the duplicate pictures.
 

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There are no pics...
 

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Discussion Starter #4
Thanks for this great site.
i think i've read most of the posts dealing with engine surging, but mine has trouble codes that are different.

'97 zr2, 4.3, 250k miles.
has been surging badly at shift points when 1600-1800rpm. idles fine.

codes are listed below.
thanks for a review

suggestions?
i can't see how to delete the duplicate pictures.


1997 Chevrolet S10 ZR2 4.3L V6.
1/22/2020.

Diagnostic Trouble Codes
----------------------------------

P0102, Mass Air Flow/Volume Air Flow: low input

P0103, Mass Air Flow/Volume Air Flow: high Input

P0146, Heated Oxygen Sensor (HO2S) Circuit Insufficient Activity
Bank 1 Sensor 3

P2218, Nitrogen Oxide Sensor, Bank 2, Heater Control, Open Circuit

C3000, Incorrect Shift from Gear

P001E, Intake Camshaft profile control A, Bank 2, Circuit Low


P1870, Transmission Component Slipping,
Or Transmission Mechanical Transfer Case 4x4 Switch Circuit Failure

P0128, Transmission over temperature condition
Or, Coolant Thermostat Below Thermostat Regulating Temperature

P0318, Rough Road Sensor A, Circuit Malfunction

PO218, Transmission over temperature condition

C06BA,
--//------------------------
104B6B38-2247-4AAC-9DAF-74FE6669CF2F.png
104B6B38-2247-4AAC-9DAF-74FE6669CF2F.png
104B6B38-2247-4AAC-9DAF-74FE6669CF2F.png
 

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Somethings not right. One of the codes is for a diesel. What kind of scanner are you using?
 

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Discussion Starter #6
yes, i saw that.
the scanner is a cheap dongle.

what about the o2s1 pictures with the big difference between bank 1 and 2?
 

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Looks like bank 2 has a lazy sensor. (Getting old)
 

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You need to get a decent scanner to see which of those codes really exist. You can get a BAFX bluetooth on Amazon for about $25. Then download Torque or Car Gauge app for your phone. It's not the best setup ever made, but will give you everything you'll need to diagnose an S10 accurately. For a total of less than $40 it'll do anything a $150 scanner can.
Some of the big box auto parts stores have scanners that give certain codes on every vehicle. They claim it's a glitch. I think it's marketing's way to sell unneeded parts.
 

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Discussion Starter #10
You need to get a decent scanner to see which of those codes really exist. You can get a BAFX bluetooth on Amazon for about $25. Then download Torque or Car Gauge app for your phone. It's not the best setup ever made, but will give you everything you'll need to diagnose an S10 accurately. For a total of less than $40 it'll do anything a $150 scanner can.
Some of the big box auto parts stores have scanners that give certain codes on every vehicle. They claim it's a glitch. I think it's marketing's way to sell unneeded parts.
thanks.
i do not have an android phone or tablet.
can you recommend an ios-friendly obd2 reader?

jon
 

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Haven't had an Apple anything since the imac, sorry.
 

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Discussion Starter #12
ok. i just picked up a new sensor.
but, the dtc i ran this morning gave me these:
---////////
P00D9
Ambient Air Temperature Sensor Circuit “B
------------
*
P1870
Transmission Component Slipping.

With the speed of the engine going over 500 rpm for 5 seconds, Fuel Shutoff inactive, throttle angle from 8.5-35%, Transaxle not in First gear, Transaxle gear range is D4, Transmission Fluid Temperature (TFT) Sensor input 68-266°F, engine torque from 50-200 ft-lbs, engine vacuum 0-105 kPa, Torque Converter Clutch (TCC) commanded on and at Max apply for over 5 seconds,

the PCM detects a

TCC slip speed
of over 200 rpm for over 5 seconds,
all conditions met for 3 times with TCC commanded off each time in between cycles.
-------

C06BE (CE) ?
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C00BE ( 7B) ?
---------------
C0F00 ?
----------------/
 

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Discussion Starter #16 (Edited by Moderator)
fluid: what am i looking for?
metal shavings?
would i have to drop the pan?

at 275,000 miles would there be risk of having to rebuild the trans if i drained it to look inside?

what else should i be prepared to change while it is open?

i thought i had a 2-3 solenoid error at some time in the past.

Thanks very much.
I'm comfortable rebuilding motorcycle and small motors but this is a bit daunting. my last car rebuild was 45 years ago on a straight 6.

Jon
F010E24A-AF8E-4AD5-AA22-B6B14666C099.jpeg
 
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