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I know where there is one in a yard here but their prices are insane :mad: I wanted to strip all the mechanical injection stuff but they want $1000 for the complete motor plus $400 core charge and won't let you pull parts off it.

Post in the 6.5 parts section that you need one. Maybe somebody can hook you up
 

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FWIW

Constant or Intermittent MIL ON, No DTC's Set
Number: 93-33-6E
Section: 6E
Date: OCT. 1992
Corporate Bulletin No.: 177138R
ASE No.: A6
Subject:
CONSTANT OR INTERMITTENT ENGINE LIGHT
Model and Year:
1991-93 C/K, R/V, P AND G TRUCKS
TRANSMISSION APPLICATIONS:
1991-1993 HYDRA-MATIC
4L80-E/4L80-EHD (MT1)
TRANSMISSION MODELS:
All
SUBJECT:
Constant or Intermittent Check Engine Light, Line Pressure and TCC Fluctuation (No Codes Stored)
VEHICLE APPLICATIONS:
C, K, R, V, P Trucks, G-Van Equipped with LL4 6.2 Diesel or L65 6.5 Turbo Diesel
CONDITION:
Some 1991-1993 trucks equipped with the L65 6.5 Turbo Diesel or the LL4 6.2 Diesel and 4L80-E/4L80-EHD exhibit a constant or intermittent check engine light with the engine running and no codes stored.
CAUSE:
The 4L80-E/4L80-EHD use an engine speed sensor and if failure occurs a code will not be stored. Code 12 will be present with the engine running and the ALDL grounded. The electronic transmission control section of the 1991, 1992 and 1993 service manuals does not acknowledge the use of an engine speed sensor or code 12 for the L65 (6.5 turbo) or the LL4 (6.2) electronic transmission applications.
CORRECTION:
Check for proper engine speed sensor operation as follows:
1991 and 1992 Vehicles
For diagnosis, use the code 12 chart from the LH6 Diesel Emission Section of the 1991 or 1992 Service Manual (Pages 6E2-22 and 6E2-23). When following the trouble tree, substitute TCM PIN D7 for ECM PIN C1 and TCM PIN D6 for ECM PIN A8.
1993 Vehicles
For diagnosis, use the code 12 chart from the LH6 Diesel Emission Section of the 1993 Service Manual (Pages 6E2-22 and 6E2-23 for the G Van, Pages 6E2-32 and 6E2-33 for the C and K vehicles). When following the trouble tree, substitute TCM PIN D7 for PCM PIN F5 and TCM PIN D6 for PCM PIN F4.












good luck
Send that to a Mod to put in the FAQ under OBD-I Troubleshooting :thumb:
 

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Discussion Starter #23
Is there anyway to pull the sensor apart to fix it or is it like crimped together
 
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