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Old 04-06-2009, 06:29 PM   #1
John Drivesabox
Scooby Newbie
 
Member#: 81610
Join Date: Feb 2005
Chapter/Region: NWIC
Location: South Whidbey Island
Vehicle:
2005 Forester XTP
Obsidian Black Pearl

Default odd fuel issue after compression test, intake/tmic removal/reinstall

Car: '98 LGT 2.5, T04E turbo w/ sti injectors, EManage Ultimate

Problem: turns over but wont start. This is the first time Ive EVER had this problem.

First thing I did yesterday was remove an old Vortech FMU which I no olnger need since I've been running EMU fr about a month. I simply removed the lines and placed all the vacuum lines back closed to the boost gauge and sealed all the fuel and vacuum lines back together.

Next, I took off my intake and washer bottle to do a compression test, after I was done I put everything back together. Compression test went fine, took the car for a test drive and everything was peachy.

THEN, I took off my intercooler (06 WRX TMIC) and intake to recheck and reseal the entire intake system, I knew I had some boost leaks and think I solved all the issues with those, a few loose spots later and I think I'm good to go. Then I put everything back together and go to fire up the car. Turns over, no joy. What could have possibly happened between taking off the intake and intercooler. Im pretty sure this is a fuel issue, I clamped the fuel line to see if it was flooding and the car fires for a brief moment. Why is the car flooding now?

The batteries been disconnected all night and I could really use some ideas.
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Old 04-07-2009, 01:24 AM   #2
PhilSine
Scooby Specialist
 
Member#: 130489
Join Date: Oct 2006
Chapter/Region: MWSOC
Location: Superior, WI
Vehicle:
02 WRX Wagon (WRB)
98 OBS-T, 91 Legacy SS

Default

You know how it is...

Air + Fuel + Spark = combustion.

Air is sowewhat of a given.

Might have broken the coil wire or the clip came undone. The coil wire does run under the TB and intercooler area. Definately check for spark first. Make sure there is voltage to the coil. Could be the crank position sensor got jarred somehow. Odd stuff can happen but yo ufirst need to determine if its rich as a result of too much fuel or rich due to no spark.
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Old 04-07-2009, 09:05 AM   #3
John Drivesabox
Scooby Newbie
 
Member#: 81610
Join Date: Feb 2005
Chapter/Region: NWIC
Location: South Whidbey Island
Vehicle:
2005 Forester XTP
Obsidian Black Pearl

Default

hanks phil, I hink I may hav found h problm, I jus nd o rassmbl and giv i a sho. B20 was loos (cam/crank angl). Now I jus nd o go g a nw kyboard.
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Old 04-07-2009, 09:06 AM   #4
John Drivesabox
Scooby Newbie
 
Member#: 81610
Join Date: Feb 2005
Chapter/Region: NWIC
Location: South Whidbey Island
Vehicle:
2005 Forester XTP
Obsidian Black Pearl

Default

and hy man, w nd o hang ou. I wan o s your SS and ouback
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Old 04-07-2009, 04:45 PM   #5
John Drivesabox
Scooby Newbie
 
Member#: 81610
Join Date: Feb 2005
Chapter/Region: NWIC
Location: South Whidbey Island
Vehicle:
2005 Forester XTP
Obsidian Black Pearl

Default

Got it, my wiring harness has a gremlin causing one of the sensors to click in or out, depending on where the harness is positioned. Fixed and done! Running great now, well, it needs another tune but it's better than before.

- J
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