RobertoS2000

AEM Digital Wideband UEGO AFR Gauge PN: 30-4110

@Adamw Calibration table seems not be correct than, easy to solve, not always to find out. Anyway, the gauge read wrong only if connected to Link ecu, Open loop. I'm pretty sure from what i write sir, have double checked wiring, and many crosstests done.

@INSW20 also in your case have 1.5 AFR difference? ..How many users didn't double check all calibrations and ends with blow engine..

Hello, immagine car on idle with AFR 14.5, than connect AEM signal to Link ecu, Gauge and PC Link read AFR 13. Disconnect AEM AFR gauge and value goes back to 14.5! Same injection and ignition timing. I'm used to install always a independent gauge to double check AFR, so im sure that AFR signal is 'contaminated' from ecu. I have tested a few different earth location and problem remains.

Hello, I have installed today my 2nd Link PnP on a Nissan S13 with SR20DET, on both cars i find this issue: When i connect to Link ecu a good working AEM afr gauge, the value goes richer from AFR 14.5 to AFR 13. Someone have same issue ? TIA Roberto