John Peterson wrote:
I am using the Sears duty cycle meter ($29) to read ECU codes on my 1990- trying to diagnose a no turbo boost situation. I am putting the positive lead on the (+) of the battery and the (-) lead to terminal #4. I am getting a 50% duty. Are these the correct pins to use to read duty? I have the MB manual of codes but I don't know which pins to read on. Can anyone help? Thanks Friends
All the information you can read (without a breakout box) is the number of pulses that can be read. It's covered in the manual 7.1-1120/pp 79-84 (attached). I've never done this as there are no useful pulse codes available on any of MY '87 and earlier cars and don't know if a dwell meter can be used to read pulses (I've used a homemade led and counted pulses on other cars).
Marshall
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Marshall Booth (who doesn't respond to unsigned questions)
"der Dieseling Doktor" [EMAIL PROTECTED]
'87 300TD 181Kmi,'87 190D 2.5 199Kmi, '84 190D 2.2 227Kmi, '85 190D 2.0
159Kmi, '87 190D 2.5 turbo 234kmi
Diesel Technical Advisor MBCA, member GWSection
http://www.dhc.net/~pmhack/mercedes/mbooth1.htm
07.1-1120_602.96pulse.pdf
Description: Adobe PDF document
