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I am trying to get through some very odd tuning issues with my truck and want to ask some help from yall. If a bunch of you guys can do this experiment and post results it might help me. Here's the procedure:
1. Start truck and get up to temp.
2. Idle in Park
3. Record AFR and RPM. If you have a scangauge record MAP press.
4. Pump brake fast 10-15 times.
5. Record AFR and RPM (and MAP if available), note any changes in other parameters.
6. Come on here and reply with your AFR-1, RPM-1, AFR-2 and RPM-2 along with any other observations.
Should be real quick and easy to do. I really appreciate anybody who can do this. Thanks dudes.
1. Start truck and get up to temp.
2. Idle in Park
3. Record AFR and RPM. If you have a scangauge record MAP press.
4. Pump brake fast 10-15 times.
5. Record AFR and RPM (and MAP if available), note any changes in other parameters.
6. Come on here and reply with your AFR-1, RPM-1, AFR-2 and RPM-2 along with any other observations.
Should be real quick and easy to do. I really appreciate anybody who can do this. Thanks dudes.