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Fizz · 01-09-2015, 08:27 AM

@sales@delicioustuning.com when running multiple maps, which number does it automatically default to during each start up?

Also, if the rear O2 is switched off in the tune, does it mean we could technically drive around with a rear sensor disconnected (at the harness) without throwing the CEL?

My plan is to get the exhaust shop to hook up the AEM wideband into the rear O2 location when installing the new header, then drive home to connect the analog output wire to the ECU myself....so during that short period the ECU would not be 'reading' anything from the rear sensor. Will it still throw a CEL?

Edit: nevermind I found out it defaults to map #1 at each start up, unless you turn key to "on" position twice before starting ignition. Also found out it's not good to drive with sensor installed but not powered, as it'll foul the sensor.

01-09-2015, 08:27 AM	#241
Fizz Senior Addict Join Date: Jan 2013 Drives: 86 GT Location: Perth, Australia Posts: 1,217 Thanks: 249 Thanked 336 Times in 215 Posts Mentioned: 12 Post(s)	@sales@delicioustuning.com when running multiple maps, which number does it automatically default to during each start up? Also, if the rear O2 is switched off in the tune, does it mean we could technically drive around with a rear sensor disconnected (at the harness) without throwing the CEL? My plan is to get the exhaust shop to hook up the AEM wideband into the rear O2 location when installing the new header, then drive home to connect the analog output wire to the ECU myself....so during that short period the ECU would not be 'reading' anything from the rear sensor. Will it still throw a CEL? Edit: nevermind I found out it defaults to map #1 at each start up, unless you turn key to "on" position twice before starting ignition. Also found out it's not good to drive with sensor installed but not powered, as it'll foul the sensor. Last edited by Fizz; 01-10-2015 at 10:49 AM.