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Timing to high?

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RaysTsi

20+ Year Contributor
323
0
Nov 4, 2002
Charlotte, North_Carolina
I used my pocketlogger on my car (which isnt idleing to great) at idle.

This is what I got


RPM Timing
864 7 deg
732 6 deg
744 5 deg
872 5 deg
816 16 deg
864 14 deg
816 2 deg
884 11 deg
832 17 deg
1472 22 deg
1804 24 deg


Over 2.2K rpm I would get 30+ degrees of timing advance
:thumbdown

I know I should retard it but should I use the crank angle sensor to retard it or should I use my MAFT?
 
Originally posted by RaysTsi



Over 2.2K rpm I would get 30+ degrees of timing advance
:thumbdown

I know I should retard it but should I use the crank angle sensor to retard it or should I use my MAFT?

Adjusting your crank angle sensor will not affect the numbers you are seeing. Your ECU can't tell your base timing. Timing numbers will be high under low airflow condition, so the fact thats its 30 degrees may not be an issue. Is it 30 degrees cruising, or is it 30 degree under WOT?

Since you are using a piggyback to tune, tune your idle using your fuel trims, worry about your timing under WOT.

Brad
 
ummm, thats normal, at wot it should drop to 15 to 19, then advance up to and past 20 to 24
 
Originally posted by RaysTsi
I used my pocketlogger on my car (which isnt idleing to great) at idle.

This is what I got


RPM Timing
864 7 deg
732 6 deg
744 5 deg
872 5 deg
816 16 deg
864 14 deg
816 2 deg
884 11 deg
832 17 deg
1472 22 deg
1804 24 deg


Over 2.2K rpm I would get 30+ degrees of timing advance
:thumbdown

I know I should retard it but should I use the crank angle sensor to retard it or should I use my MAFT?

Ok, first a few things. I assume this is a regular 7 bolt motor with original cam and crank sensors? If so then you can't and won't need to adjust anything in terms of timing. I'm going to assume the timing is normal since your airflow was more than likely pretty low. The ECU will index timing based on airflow and rpm according to tables in the ECU code.

Edit: Just saw your mod list which included 6 bolt motor, sorry for the uneccessary post. Make sure base timing is correct by grounding the brown plug on the firewall. Once that is set the ECU normally has good (safe) control of the ignition timing maps.
 
I wish I knew what size my injectors are. The first owner "upgraded" them and didn't think it was important to remember what size he "upgraded" to.:thumbdown Im hoping to use the pocketlogger to find out.
 
Originally posted by RaysTsi
I wish I knew what size my injectors are. The first owner "upgraded" them and didn't think it was important to remember what size he "upgraded" to.:thumbdown Im hoping to use the pocketlogger to find out.


If that doesn't work you could try asking your local pharmacist for a small container which has CC increments. Then removing an injector, unplugging the rest, and finding how to get them to fire you can count out 10 cycles into the container. Repeat sequence a couple of times. You can of course do all 4 to make sure they are delivering the proper amount.

Hopefully someone can tell you were to tap in with a test light to trigger the injector(s) to fire. It may be in the manual, I've just not looked for it.

Cheers,
GTM
 
Originally posted by blackawdturbo
http://www.cruzin... [/B][/QUOTE] ...the mods that have been done.Cheers, GTM
 
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