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Registered
Join Date: Aug 2004
Location: Saco, Maine
Posts: 46
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1986 928 No pulse at fuel injectors
We have a 1986 928 with a crank but no start issue. We have no pulse at the fuel injectors. This car has been sitting for ten years, and we anticipate the fuel injectors are pretty gummed up, so we have new fuel injectors to install. It will fire briefly with a shot of starting fluid - but with a noid light see we have no pulse at the injectors. Where do we begin? Thanks!
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02-02-2021, 08:06 AM
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Registered
Join Date: Mar 2010
Location: Texas
Posts: 2,137
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RELAY RELAY RELAY.
 (XXV) Top Row next to the right-most relay. It should be a standard 53 relay. Also make sure that there are no relays installed in any terminals that should be vacant. https://cdn.shopify.com/s/files/1/1694/8685/files/1986.jpg?12497316563525842542 (relay chart courtesy of 928sRus and Alan Moore)
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John Curry (Drift King) 928OC member Grand Prix White 1994 GTS AT (The GTS) Black 1989 GT (The GT) and Cobalt Blue 1989 S4 AT (The Blue Car) 1986 Euro AT Indishrot 1984 Euro S AT (The Stepson) and Black Metallic 1984 Euro S 5 speed (The Schwartz) |
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02-02-2021, 08:25 AM
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Registered
Join Date: Aug 2004
Location: Saco, Maine
Posts: 46
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Thank you! We will be pushing the 928 back in next week - we will check the LH relay and see if we have power to it. I appreciate it!
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02-05-2021, 10:36 AM
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Petie3rd
Join Date: Jul 2000
Location: Philly PA
Posts: 4,528
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drop the CE panel and spray every connection with deoxit 100,
also look for flat black connectors that are behind the CE panel, might be 8 pin and 6 pin or 4 pin , if you have them they need to be taken apart and cleaned, then put back together with d100 then see if you have an alarm, if so remove the alarm and jumper the 2 pins look up alarm jumper for 86 928. Alarm is behind and on top of glove box so GB removal is necessary
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^^^ Stan ^^^ 2019 BMW K1250 GS 2016 HD RK 1988 S4 Auto , Elfenbein Perlglanz, Pearl Gray 1982 5sp Met black and tan sport seats |
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02-10-2021, 12:10 PM
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