Welcome to the North American Subaru Impreza Owners Club Wednesday July 26, 2017
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Go Back   NASIOC > NASIOC General > Newbies & FAQs

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads. 
Thread Tools Display Modes
Old 04-07-2013, 05:44 PM   #1
Scooby Newbie
Member#: 349719
Join Date: Mar 2013
Chapter/Region: RMIC
Location: Fort Collins, CO
1999 Impreza

Default 1999 Impreza, retarded timing

Have a normally aspirated 1999 Impreza AWD, auto trans, 2.2. No mods of any sort. Daughter bought car recently.

Compression 170-180 each cylinder.
Fuel pressure 40psi, rises under load.
Timing belt spot on.
not exaust leaks or rattles
new oxygen sensor
new knock sensor
verified engine and ecu grounds
no induction leaks
pcv valve clean and functioning
no code present unless I artificially produce them
updated ecu supposed to eliminate knock problems
Scanning with Snap-on MT2500 with generic OBD 2
o2 switches fine at idle or part throttle while sitting.
Car appears to go rich under load-driving,
STFT goes to -4 to 5

Severe hesitation up to about 2500-3000 rpm. Timing retards to -6 degrees.

As soon as higher rpm is reached car takes off, timing moves up to +15 degrees.

Need some ideas, don't have any more hair to pull out.

* Registered users of the site do not see these ads.
1stRaptor is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

All times are GMT -4. The time now is 03:33 AM.

Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2017 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.