OMG my flaming P.O.S doesnt advance timing.

[imdrax]

Originally posted by kpt4321
The ground strap isn't going to make a difference.

Get a workin coolant temp sensor on the car, it's never going to run even close to correctly with that dead one on the car. Fix that problem.

To adjust timing, there is a plug behind the battery in the harness. If you pull the cap off, there is a plastic prong and a smaller metal prong inside.

That VFAQ picture does show it, it's just hard to see.

The logger shows you the total timing advance, ASSUMING 5 DEGREES OF BASE TIMING. The ECU just assumes that the CAS is set correctly, because it has no way to know if it is not. Therefore, if you have the base timing set at 6 (for example), then you need to add one to all the readings on the logger.

When you change the timing, it will not change on the logger. Additionally, in order for you to properly make base timing changes, you need to unplug the logger.

alright well then i am grounding off the right clip then. i do notice my rpms slightly change but what i dont understand is that when i have it grounded or not grounded i see the ssame reading with my light.also while im looking at the mark to set my timing my mark fluctuates significantly it will jump +/- 2* or so. i will pick up a new coolant temp sensor tommorow for sure . i didnt realize it was so significant to my timing advance.thank both of you guys for your helpful input. i willpost back after i make a few changes to let you guys know how its going.

 

[kpt4321]

Originally posted by NOSLO2PT0
Wrong there. So what if you set your base timing to 0? How much timing advance are you getting? The logger doesn't know or doesn't care what your base timing is set at. You simply add the advance amt. shown on the logger to your base to get total advance.

If you set the base timing to 0, then your total advance will be the amount on the logger minus 5.

The PocketLOGGER, and most other loggers as far as I know, show total advance.

If you don't believe me, do the following experiment to prove yourself wrong: Plug in the logger, and turn it on. Also hook up a timing light to the number 1 or 4 spark plug wire. Hit the timing indicator with the light, and look at the logger.

You will see that the timing on the logger matches the timing shown by the light, or is at least within 1 degree or so (the timing belt cover can be slightly misaligned).

For example, when you are at a normal idle, the total timing advance is 8 degrees. Interestingly enough, the logger shows 8 degrees too. That's because it shows total timing advance.

 

[kpt4321]

Originally posted by imdrax
alright well then i am grounding off the right clip then. i do notice my rpms slightly change but what i dont understand is that when i have it grounded or not grounded i see the ssame reading with my light.also while im looking at the mark to set my timing my mark fluctuates significantly it will jump +/- 2* or so. i will pick up a new coolant temp sensor tommorow for sure . i didnt realize it was so significant to my timing advance.thank both of you guys for your helpful input. i willpost back after i make a few changes to let you guys know how its going.

Are you properly grounding the pin, and unplugging the logger, when you try to adjust the timing?

 

[imdrax]

well i keep it connected to the diag. port but not connected to the logger. should i disconnect it from the diag. port while checking base timing also?and about your previous statement im running mmcd and when my car is idling in nuetral it always shows 3.9-4.1 ALWAYS partial throttle i can see as high as 10 or so and on decelaration i see as high as 10 also. i think something is really wrong though because i see people getting high 30's in partial throttle situations and i never at any point in time whether it be idle,partial throttle, WOT, decelaration, see my timing reach higher than 10*.

 

[kpt4321]

You can't keep it connected to the diagnositics port. If the cord is plugged into the diagnostics port, and the timing adjustment pin is grounded, then the car will be in idle adjustment mode which does NOT lock the timing at 5 degrees, it puts it in a small range around 8 degrees.

You need to totally unplug anything from the diagnostics port when adjusting the timing.

I have MMcD too, I will have to look at it to see if it shows total timing, or if you need to add base timing in. I know that PocketLOGGER shows total, I'll get back to you about MMcD.

Are you un-grounding the timing adjustment pin under the hood when you are driving around?

The only reason for the timing to stay locked like that is if the pin is grounded under the hood, or if one of the sensors is outside a certain range (like your temp sensor probably is).

 

[Corman12345]

You might want to check your cam timing, The belt could have jumped a groove, If that happens the problems will be similar to yours since the cam angle sensor will be off and your timing will be inaccurate

 

[90AWDTalon]

Originally posted by NOSLO2PT0
Wrong there. So what if you set your base timing to 0? How much timing advance are you getting? The logger doesn't know or doesn't care what your base timing is set at. You simply add the advance amt. shown on the logger to your base to get total advance.

I believe kpt4321 is right, if you look there is an option to change the base timming on the pocketlogger. If it doesn't show total timming why would this option be there?

 

[imdrax]

ive already checked my cam gears and they line up perfect.