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tangomar · 03-31-2010, 02:18 PM

Carlos is right.

You probably have multiple O2 sensor and you have to fool them in the same way. This means that you might need 4 EFIEs. At that point you might need to adjust MAP/MAF, TPS, IAT, ... as well.

Isn't cheaper to remap your ECU at that point? You can have it tuned perfectly as you wish.

Another way to do it is to use a Volo Performance chip. They are quite cheap right now: FS1 Fuel Saver
They soft patch the ECU continuously. Some people reported good savings on another forum.

I would still monitor the exhaust temperature to make sure you aren't going to burn anything.

03-31-2010, 02:18 PM	#7 (permalink)
tangomar EcoModding Lurker Join Date: Jul 2008 Location: US Posts: 76 sukisuki - '00 Suzuki Grand Vitara 4wd 90 day: 21.88 mpg (US) Thanks: 1 Thanked 15 Times in 6 Posts	Carlos is right. You probably have multiple O2 sensor and you have to fool them in the same way. This means that you might need 4 EFIEs. At that point you might need to adjust MAP/MAF, TPS, IAT, ... as well. Isn't cheaper to remap your ECU at that point? You can have it tuned perfectly as you wish. Another way to do it is to use a Volo Performance chip. They are quite cheap right now: FS1 Fuel Saver They soft patch the ECU continuously. Some people reported good savings on another forum. I would still monitor the exhaust temperature to make sure you aren't going to burn anything.