Afternoon,
I am looking for some general Idle tuning and return to idle help on my current build.
During Idle: the timing is hunting even though it is relatively stead.
After Throttle...
Type: Posts; User: gcattani
Afternoon,
I am looking for some general Idle tuning and return to idle help on my current build.
During Idle: the timing is hunting even though it is relatively stead.
After Throttle...
Thank you for the reply, Ben Charles!!
That looks like it might be the issue that I've been chasing. My current tune has Throttle Follower a tiny Decay (P/N) (0.0127 to 0.0186 g/s) and what seems...
Spark Advance Adaptive non-responsive for 3 seconds after throttle blips
So, running the engine on a test stand, the spark advance adaptive stops working and goes to zero (0) degrees for a...
Afternoon,
Dealing with a similar issue with a DBW 5.3 and 0.585/0.585 cam, where the throttle body hunts with a set idle RPM and Spark. Can't get the throttle body to stop oscillating .
Quick...
Ran the engine once again this afternoon.
- With locked idle at 950RPM and Timing/Advance, I narrowed in the Idle Airflow.
- Idle is still hunting!
What am I missing?
Evening,
Back at it!
- Engine start up Cold or Hot without issue
- AFR is near stoich with a wideband
- Engine is run on an engine stand
Issues:
- With RPM, Timing, and Spark Correction...
Morning c10turbolsx,
Any chance you sorted out your tuning issues? Mind posting your tune for ref?
Morning. Any takers?
Afternoon,
Did some work modifying my recent tune.
- MAF is back in.
Any tips and support would be greatly appreciated.
Thanks!
Engine Details
- 5.3L DBW Gen 3
Thank you for the quick reply, 5FDP. Much appreciated.
Regarding the exhaust:
- Stock manifolds.
- The Front O2's are in the stock location, so, a few inches after the manifold collector...
Morning,
Here's the engine build for reference:
- 2004 GEN 3 5.3L.
- Drive by wire throttle body (DBW).
- Elgin 1840P (SS2) Cam with 0.585/0.585 valve lift. See attached for cam card information....