Hello
i just installed AEM X-series wideband. The readings are around 5. off compared to tunerstudio. The AEM probably reads correct. I had lc-1 previously, and the gauge readings are very similar. Lc-1 and tunerstudio were also off. by 1-1.5.
MS1 get its ground from engine block. 12v comes from fusebox.
Wideband gets its ground from steering column ground. 12v from the same fusebox, but under different fuse.
Questions:
I have connected the analog +, is there a place to connect analog - ?
Should I connect the Wideband 12v inside the MS, where the MS 12v is soldered?
Should I connect the wideband ground inside the MS, where the MS ground is soldered, or solder it to the fusebox, where the MS is soldered?
All help is welcomed.
Thanks
AEM X-series wideband reading
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Re: AEM X-series wideband reading
First thing to try is to ground everything at the same point.
Re: AEM X-series wideband reading
Contrary to the MS and IC2 directions I had to install multiple ground wires (MS & O2 to engine block and O2 gauge to local ground by dash). This was the only way I could reduce the noise in TS. I then selected generic wideband in TS and used my own cal values to the readings between gauge and TS agreed. They were off by around 1%AFR between my gauge which agreed with the Tuners wideband. Tuner also tested values by reducing VE at idle until engine started to miss. This occurs around 15.2AFR. Good cross-reference check before starting to use VEAL.
jim
jim
Toyota MR2 98 3sgte
MSPNP2 with 3.57 mainboard
Innovate WB O2 & soon to be external GM 3 bar MAP
FTDI USB interface on SD Android 5.1 head unit
TD05SL2-18g with external WG
HKS EBC running 17psi boost.
A2W IC with WI 50/50 meth/water
MSPNP2 with 3.57 mainboard
Innovate WB O2 & soon to be external GM 3 bar MAP
FTDI USB interface on SD Android 5.1 head unit
TD05SL2-18g with external WG
HKS EBC running 17psi boost.
A2W IC with WI 50/50 meth/water
-
- MS/Extra Newbie
- Posts: 15
- Joined: Sun Aug 21, 2016 12:07 pm
Re: AEM X-series wideband reading
Thanks guys. I managed to fix my problem. I soldered the brown wire (analog -) to MS ground (pin2) , and bow the numbers match. I do have a strange autotune problem, that with very light load it wants to tune afr horribly lean, didn't have that problem with using lc-1. No idea why it wants to do that. Anyway I locked the cells, and everywhere else it changes ve correctly.