Back to shop ↗
THE HOLDEN COMMODORE FORUM

HOLDCOM Community

Built around the cars. Kept alive by the people.

+ Start a discussion
Holden Commodores gathered at Holdcom
Forum Home›Technical help
Technical help

The mystery problem (over fueling + Timing)

Started by Mad87VL · 8 Mar 2017 · 5 replies

Preserved from CalaisTurbo. Original authors and dates are shown; archived members are not current Holdcom accounts. View original archive ↗

Mad87VLArchived member
Hi there guys. First of all thanks for looking into my thread. The problem that has cursed my poor vl is that its recently had hi comp tubro (arrrr here we go!) and its having a issue with it over fueling and killing my plugs then it's also apprently its not tuning to the standard 15 degree timing. Ive got it at the mechanics at the moment and he seeming to be unsure of the exact issue, he says he can only time it to 0 or if he moves a tooth on the dissy it jumps to 25! We have so far tryed replacing .3 different vl computers (stock na, nistune, stock vl tubro) .airflow meter .cooling temp sensor Ive also giving him a different dissy for a cas change over but his pretty sure that isn't the issue. Dont think his checked the timing belt yet so im thinking that where ill head next (sad i need to recommend stuff?!) The gear on the engine is a standard vl tubro setup plus a intercooler. Any ideas for I just decided to get it back and tear out the dirty 30 woukd greatly appreciated ---------- Post added 08-03-17 at 21:52 ---------- Ps the mechanic has recommended buying and installing a Wolf 500 ECU which would have a maf less tune, would that help? Sent from my SM-G930F using Tapatalk
0 likes
deenoArchived member
Hey mate no expert here just had few problems of my own. Are you running standard vlt injectors and fuel reg? Any boost/vac leaks throwing the computer out? I think an aftermarket ecu might help especially to tune......if anyone else has more info please correct me. Sent from my HTC_PN071 using Calais Turbo mobile app
0 likes
deanoVLCTArchived member
I'm no expert but no you don't need a aftermarket �CU When you put the dizzy in/out it jumps too far sometimes Seems to me like he is skipping over, needs to be at 15 degrees!
0 likes
Mad87VLArchived member
Quote: Originally Posted by deeno [View Post] Hey mate no expert here just had few problems of my own. Are you running standard vlt injectors and fuel reg? Any boost/vac leaks throwing the computer out? I think an aftermarket ecu might help especially to tune......if anyone else has more info please correct me. Sent from my HTC_PN071 using Calais Turbo mobile app Standard VLT injectors but it's just the na fuel reg Sent from my SM-G930F using Tapatalk
0 likes
Mad87VLArchived member
Thanks for your input guys, turned out to be leaky fuel Injectioners and a crappy CAS plug Sent from my SM-G930F using Tapatalk
0 likes
deenoArchived member
Glad to hear it was nothing major, thanks foe the update all the best with it mate. Sent from my SM-G930F using Calais Turbo mobile app
0 likes
Sign in or create an account to reply. New members are welcome—no purchase or old CT account needed.

Who’s online

1 member and 15 guests active in the last 15 minutes

Visitors Today17

3,683 threads, 23,233 posts and 75 images saved from CT