As the title states, car was just tuned. On and off the dyno it's been at 0mph while driving. I've also lost my power steering and 2-step.

Please help.

Thank you!!!

 

Bump.

Still no speedometer.

 

No speedo inside of AEM software, or no Speedometer on dash. Or both?

 

Speedometer reading 0mph on gauge cluster. Maybe on AEM EMS setting but waiting for tuner to fix. Seeing if anyone know the technical fix on the AEM before I see the tuner.

 

The yellow jacket is a calibrator. I don't think it has anything to do with me reading 0mph. I've heard that is a fix but I need to know its a known fact before I purchase it.

What if I plug connector "a" to the stock ecu and leave connector "b" and "c" to the aem. It looks like connector "a" is not modified to the tune.

 

everything should still work with the AEM. Sounds like a car problem and not an computer problem. IIRC the powersteering has its own system so it shouldnt be affected by the ecu.
all 3 plugs should go into ecu and non to stock ecu

 

I have the same post in the forced induction thread and someone is suggesting to change my plugs to the NGK Iridium IX because the ones I have now are NGK Laser Platinum gapped from .045 to .02 and they might be low resistance plugs which can cause a short to the speed sensor. It's worth a shot. I'm gonna buy the Iridium IX tomorrow. Hopefully it works. Normally the unexpected is the effect. We'll see. Crossing fingers.

 

i dont know but your plug gap is way too high.

it should be from .02-.025 and one step colder from stock

 

I installed the NGK BKR7EIX-11 6988 Iridium IX gapped to .032 because that's what SOS website recommends when under 375 whp.

I check the wires and clips around the VSS and ground and everything looks fine to me. I've never messed around that area so I still have a feeling it's in the AEM.

 

I regapped my NGK BKR7EIX-11 6988 spark plugs from .032 to .025

Still having issues with no speedometer but will try to see tuner ASAP