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» Northern California Ford Owners     » Automotive   » Tech Talk   » help with error code 87

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Author Topic: help with error code 87
Stan G
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Member # 6226

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hi guys, I just installed a 91 5.0 into a non-ford car ( an Rx-7 ) .
This is going to be a smog-legal project, so i have to get it right.

The car is running and I got the check engine light working but the fuel pump error code 87 comes up and keeps the cel light on, so I have
to clear that.


(code 87 (oc): FP relay circuit failure- suspect inertia switch, fusible
link, FP relay. )

I did not use the ford relay when wiring up the rx-7, I used the stock Mazda
set-up,

I read a strange 6-7 volts on pin 19 of the ecu even though the wire is cut
.

I think I may get rid of the code by applying 12v to pin 19, but thought I'd
run this by you first, as I don't want to blow up the ecu .

Here is a copy of the schematic that works :

http://webpages.charter.net/kgoldstein0588/fuelpump4.jpg

Thanks for any help.

[ July 16, 2006, 11:30 PM: Message edited by: Stan G ]

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1985 RX-7, 347/T-5 , T/F T/W heads, typhoon intake, Tfs2 cam, pulleys, 2500 lbs .
3.63 rear gears , Megasquirt
Posts: 105 | From: Sun Coast , Florida | Registered: Nov 2005  |  :
Stan G
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Member # 6226

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Sorry, I can't get the pix to show the detail.

I can e-mail the file to any interested parties, lmk

Thanks, Stan

--------------------
1985 RX-7, 347/T-5 , T/F T/W heads, typhoon intake, Tfs2 cam, pulleys, 2500 lbs .
3.63 rear gears , Megasquirt
Posts: 105 | From: Sun Coast , Florida | Registered: Nov 2005  |  :
two-gun kid2
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Member # 5891

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quote:
Originally posted by Stan G:
Sorry, I can't get the pix to show the detail.

I can e-mail the file to any interested parties, lmk

Thanks, Stan
here you go

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Posts: 5566 | From: Hayward,Ca | Registered: Jul 2005  |  :
Stan G
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Member # 6226

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Thanks KId,

I still have a better version to e-mial if anyone wants it though.

--------------------
1985 RX-7, 347/T-5 , T/F T/W heads, typhoon intake, Tfs2 cam, pulleys, 2500 lbs .
3.63 rear gears , Megasquirt
Posts: 105 | From: Sun Coast , Florida | Registered: Nov 2005  |  :


 
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