Hey R3Vers, any help would be greatly appreciated here, with a no run issue on my '87 eta. The short version is, that after replacing a very noisy high pressure fuel pump ( car was running well enough before pump swap ), now it will turn over, fire, run for a few seconds, then die.
The long version: Bought the car from a fellow R3Ver in january. Had a terrible idle (vac issues), and among the many other issues it has, the most annoying was the noisy fuel pump and a warm/hot starting issues. After a few months and a few very embarrassing autoX events ( sucks when you sit there cranking for ever and the car wont start) i finally traced part of the issue to a dead transfer pump. Replaced that last weekend, car ran much nicer (smoothed out the idle a lot), and seemed to help the hot starting a lot. High pressure pump was still hella noisy, so to be proactive, i decided to put in a TRE Performance OE style pump, (also did a new fuel filter when I replaced the in tank pump). Anyway, yesterday the new pump went in quick and easy, turned it over VRROOMMM .. silence.. .. WTH.
So I tested both pumps, all electrical components ( I'm a EE so went with electrical anything first), then line restrictions, I got nothin. All the voltages are within spec, the relay tested to work, the return line is not clogged, and the feed line delivers fuel. I then added a 60psi gauge at the cold start valve, used the bypas switch (per Bentley instructions for testing fuel pressure), and it pegged the gauge right off the bat, AND.. i get zero fuel out of the FPR when pumps are running.
So since I can't think of anything else i'm guessing FPR, but i'm curious if anybody else has input? It seems like an odd component to just up and die on me. I also have yet to take the rail apart and check for obstructions. But any ideas or things maybe I have overlooked would be super helpfull.
Thanks
The long version: Bought the car from a fellow R3Ver in january. Had a terrible idle (vac issues), and among the many other issues it has, the most annoying was the noisy fuel pump and a warm/hot starting issues. After a few months and a few very embarrassing autoX events ( sucks when you sit there cranking for ever and the car wont start) i finally traced part of the issue to a dead transfer pump. Replaced that last weekend, car ran much nicer (smoothed out the idle a lot), and seemed to help the hot starting a lot. High pressure pump was still hella noisy, so to be proactive, i decided to put in a TRE Performance OE style pump, (also did a new fuel filter when I replaced the in tank pump). Anyway, yesterday the new pump went in quick and easy, turned it over VRROOMMM .. silence.. .. WTH.
So I tested both pumps, all electrical components ( I'm a EE so went with electrical anything first), then line restrictions, I got nothin. All the voltages are within spec, the relay tested to work, the return line is not clogged, and the feed line delivers fuel. I then added a 60psi gauge at the cold start valve, used the bypas switch (per Bentley instructions for testing fuel pressure), and it pegged the gauge right off the bat, AND.. i get zero fuel out of the FPR when pumps are running.
So since I can't think of anything else i'm guessing FPR, but i'm curious if anybody else has input? It seems like an odd component to just up and die on me. I also have yet to take the rail apart and check for obstructions. But any ideas or things maybe I have overlooked would be super helpfull.
Thanks
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