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Correction to my earlier post 700 1990

uid 18083's pic
posted by  lucid on  Mon Sep 8 13:49 CST 2003
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last visit: Fri Oct 24 12:31 CST 2014
[RELATED]

I was too hasty in reading Service bulletin #135. The Cold Start Injector is still grounded by the ECU (separately from the other injectors).

What is different is that power TO the CS now comes from the starter (and only when cranking). It no longer comes from the common injector feed via the RS relay.

The SB says this change was to fix a "rich fuel mixture during engine crank and cold start warm-up functions". But it also results in the 3-2-1 code, "even if no fault is present" as stated in the Regina fault tracing Service Manual.

Bottom line, it seem the 3-2-1 is bogus — since the January 1990 Service Bulletin.
--
Bruce Young,
940-NA (current)
'80 GLE V8 (Now gone)
'83 Turbo 245
'73 142 (98K)
'71 144 (track modified--and still here)
New 144 from '67 to '78
Used '62 122 from '63 to '67






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