'67 Mustang with '92 Mustang 302 TFI ignition
2.885 code
MS2
Narrow band o2'S
Wideband reads 14.7 at idle and can be adjusted using VE table.
Loaded a base file for TFI as in Mega-manual.
Starts/idles fine.
Timing light shows 17 degrees of advance; same as MS timing wizard.
As engine is rev'd timing gradually retarded, not advanced.
At 2300 RPM engine stumbles and 3000 rpm timing goes to almost ZERO.
MS logger shows 30 degrees advance but timing light shows it's retarded toward nearly zero degrees.
Do I need to update to a more nwer code version?
The code page is totally confusing to me and i'm lost on it:
http://www.megamanual.com/ms2/code.htm
How do I know if I need to load newer code?
Suggestions?
TFI timing does not advance (it retards)
Forum rules
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0). For tuning/troubleshooting questions, please attached a datalog and your MSQ file to your post.
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
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Matt Cramer
- Super Squirter
- Posts: 2951
- Joined: Sat Jul 03, 2004 11:35 am
Re: TFI timing does not advance (it retards)
The code should be OK; I think this is a settings issue. Please post your MSQ file and I'll look it over.
Re: TFI timing does not advance (it retards)
See attached files: msq and logs
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Matt Cramer
- Super Squirter
- Posts: 2951
- Joined: Sat Jul 03, 2004 11:35 am
Re: TFI timing does not advance (it retards)
Change spark output to Going Low / Normal and Max Spark Duration to 8.0. Please let me know if that fixes it.
Re: TFI timing does not advance (it retards)
Will do.
Thx.
Anthony
Thx.
Anthony
Re: TFI timing does not advance (it retards)
Set it back to where the directions said re-checked the firing order.
It's different as it's a cobra motor and same as a 351 engine.
lowered the timing by 7 degrees and adj the trigger wizard.
Starts and runs good.
Need to re-add the timing from idle to 2K rpm and begine loging fuel.
It's a bit of a turn (rich) but definitely accels better with advanced timing.
Real tuning begins next week.
It's different as it's a cobra motor and same as a 351 engine.
lowered the timing by 7 degrees and adj the trigger wizard.
Starts and runs good.
Need to re-add the timing from idle to 2K rpm and begine loging fuel.
It's a bit of a turn (rich) but definitely accels better with advanced timing.
Real tuning begins next week.