The "let's brainstorm how to make a piggyback work" thread

[Nexus1155]

http://www.allproducts.com/manufactu...911154234.html

probably can score that for pretty cheap if you contact them. I was introduced to the Wideband output signals from a friend a while ago, he said Zeitronix also has them on their kit just to offer an alternative to the LC1.

The SMT8 should work as well as long as it has the programmable outputs as well, this piggyback was also recommended to me by the same person who told me the AFR Gauge trick. The SMT6 that they discountinued can be found for around $150-$200
In theory it should honestly work if the ecu doesn't freak

[eTiMaGo]

Originally Posted by PK198105

i can almost guarantee a CEL, since the ECU is programmed with safety margins and thresholds.

Yes, but, what I mean is, if you want to run a richer than stoich ratio without the ECU freaking out, you need to fool it into receiving "normal" signals.

Say that at stoich (14.7:1 AFR) the O2 sensor has a voltage of 2.5V Your target AFR is, let's say, 12:1, which would (I'm guessing) correspond to a voltage of 3.5V from the sensor. The trick would thus be to change this 3.5V to 2.5V so the ECU thinks the catalytic system is working just fine and there's no problem.

Originally Posted by Nexus1155

http://www.allproducts.com/manufactu...911154234.html

probably can score that for pretty cheap if you contact them. I was introduced to the Wideband output signals from a friend a while ago, he said Zeitronix also has them on their kit just to offer an alternative to the LC1.

The SMT8 should work as well as long as it has the programmable outputs as well, this piggyback was also recommended to me by the same person who told me the AFR Gauge trick. The SMT6 that they discountinued can be found for around $150-$200
In theory it should honestly work if the ecu doesn't freak

I guess the question now becomes, who's gonna be willing to experiment with some of these?