This morning I unplugged the EBP sensor and the bucking seemed to be a little less.

hmmmm.... wonder if I needed to clear the KAM with the SCT tuner after I unplugged it? Would it make a difference?

heck......... gonna try it at lunch when I get home. If there isn't a difference I will plug the EBP back up and then unplug the EGR valve and clear the KAM & disconnect the batteries and see what happens.

 

for those that might freak out..........

I know tht I need to leave the EGR plugged in for fan operation. I am just going to have it unplugged long enough to see if it makes a difference as far as the bucking is concerned.

the drive from work to home will bring the motor up to opreating temp. then I am going to disconnect the batteries / turn on headlights

wait about 10 minutes

turn off headlights / connect batteries / unplug EGR connector / use SCT to clear the KAM

-- VGT relearn --

- KOEO turn key on (wait minimum 5 seconds) turn key off / 2 times

start motor and see what it does. If there isn't a change I will plug the EGR connector back up.

 

Plugged the EBP sensor back....

disconnected batteries and all.......... waited a little over 10 minutes then hooked everything back up.

Unplugged the installed EGR valve and installed the plug into an EGR valve I had laying around (don't know if it is good or not) and just layed it on top of the motor.

KOEO VGT relearn

Used SCT to clear KAM


results:

nothing changed.


going to just unplug the EGR all toghther and see what happens on the way home.



Oh..... At least the CEL side is working. Being that the EBP was unplugged it threw the (P0472) code.


makes me think that the EBP sensor is good because if it wasn't good it would throw code .........correct?

 

Before I left this morning I put these in the SG2

EGR Duty Cycle (Percent)
EGR Valve Position (mm)
EGR Valve Position Desired (%)
EGR Valve Position Measured (%)

I got all zero's. Even once I got it up to temp, they never moved, all of them stayed at zero.

I think this confirms the EGR is not commanded ON when running a tune, or at least my tune.

.

 

EGR unplugged....... no difference. Noticed that the ECT or EOT spread didn't change much.

On a good note.... now that I know that I needed to get the readings between the MAP & EBP.... KOEO

here are my readings between the 2.... KOEO

 

should check the 3 MAP, EBP BARO cold start.

 

when you say "Cold Start"

you mean literally start motor on a dead cold motor....or just KOEO?

 

You got to do a diagnostic with the tune off, set it back to stock

 

just koeo (cold)
and running not to far or hauling a load unplugging the EGR is ok, yes the fan Function wont come on but the only way to problem solve the EGR besides Scan Gauge and with out buying new

 

Not exactly operating temp, but KOEO .... stock tune

 

HMMMM switch the Sensors EOT and ECT and see if ECT drops, good to see the 3 values the same.

 

What are the psi @idle and 2500rpm David

 

Benny.... you talking about the psi for MAP & EBP ?


that last pic I posted ...... I might not have the correct xgauge entry. I forgot to mention that the BAR never changed @ idle or driving down the road.

 

Yes for those 2

 

will post up tomorrow evening those readings.