natedog910
Member
- Joined
- Apr 7, 2015
i attach a file
rich condition at light throttle afr goes to 8.0 the cleans up when boost comes in
- Thread starter natedog910
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Dan SS2471
Active Member
- Joined
- Dec 12, 2008
One thing that jumps out is your MAP signal. It appears to be dead?
SCOOBY DOO
BASED CANADIAN PATRIOT!!
- Joined
- Feb 18, 2007
Boost isn't hooked up. What are you running for a chip?
natedog910
Member
- Joined
- Apr 7, 2015
tt 5.7 e85
SCOOBY DOO
BASED CANADIAN PATRIOT!!
- Joined
- Feb 18, 2007
You held the TPS steady for 4 seconds at 2.3. NB was about 860 and WB 8.6 to 9.2. Eric errs on the rich side with his 5.7 chips. The more you lay into it...higher boost...the more the engine will lean out. I'd like to see a MAF reading in Park with the engine at operating temperature. Your full engine build will help us as well. I assume if you have a Translator the dip switches, MAF and WOT knobs are set correctly. Also you have a fairly fresh NB Denso sensor installed as well. 5.7 uses the NB to send the signal back to the ECM to set the fuel.