Electrical New fox body owner little worried

Canadianfox

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Aug 18, 2019
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Not good enough, must test pressure under load (when it bogs).
All symptoms point to bad fuel pump.
Only question I have is if the pump was dying on me ,would she smell of unburnt fuel at idle?i checked the ecm outputs for the o2 sensors all is good , now I gotta check the o2s themselves (orange ground is good )
 
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Canadianfox

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Aug 18, 2019
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So after starting the beast after 5 days I got a chk engine code 77 which doesn’t even make sense to me .Tomorrow the new fuel pump and filter go in
 

Blown88GT

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Nov 13, 1999
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Only question I have is if the pump was dying on me ,would she smell of unburnt fuel at idle?i checked the ecm outputs for the o2 sensors all is good , now I gotta check the o2s themselves (orange ground is good )
No. It's getting enough fuel to idle. The FPR is able to maintain full pressure at idle.
 

Canadianfox

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Aug 18, 2019
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Montreal
Well new fuel pump ,fuel filter and filler neck seal are in .Dumped the code memory still ran like crap then ran well and the ran like crap.She runs like crap randomly and when she does she codes.Came home checked and the only code is code 61 no more other codes .ECT is brand new so time to check the wiring.Is it possible the computer is just :poo:ting the bed ? I don’t think code 61 will cause her to have initial start up issues cold then run like :poo: randomly when she feels like it in any speed at any time ? Seems crazy that one sensor or wire can pull off this nightmare of symptoms ?? I’m mean Jesus Christ?
It’s not a valve issue or vacuum issue because let’s be honest you don’t sometimes have those issues ,you do or you don’t!! With all my tests compression ,and other it’s just not possible it’s an internal engine issue .Im an actual diesel mechanic more than gas but when you have a upper valve train issue ,rings or cam it’s either broken or not broken , no on off random stuff
 

a91what

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one sensor can however cause all kinds of crazy issues... the ECT not only does timing retard/advance but also fuel trim based on engine temp...

sorry to jump in late and not read all the posts but are you getting a code 11??
 

Canadianfox

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Aug 18, 2019
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No code 11 I think I’ll check just code 61 that’s it.Didnt know code 61 was that important I pulled the data to diagnose sensor ,wire and écu signal so I’ll check it tomorrow .Imagine that I dumped tons of cash into this car ,hopefully it’s not just a damn wire.If it is the écu I’ll fork out for the megasquirt system and be done with these Ford ECU’s