Tacoma running rich no CEL

Thanks for making that a little more clear for me! My only question is since the unichip is no longer installed and I have disconnected the battery, shouldn't the ECU revert back to factory settings and compensate for my upgrades? If that was the case, I shouldn't be having any issues, right?

 

Have you driven it since you took the chip out? How far?

 

I haven't had it in for about a week. So over 100 miles I would imagine.

 

That should be enough time for the computer to relearn.

*If you use the quote feature the person you're addressing will get a notification, btw.

 

Yes, and a ~10:1 AFR is normal with the OEM ECU controlling everything. Wastefully rich.

 

Thato what I though. And sorry, I didn't know!

 

So you think this could have rolled off of the lot like this? I bought it used and I didn't start paying attention to all of that until a few months down the road.

 

Like I said, it is well known and documented, by those whom delve into the performance arena, that they run rich from the factory. In WOT/Open Loop. Even mine.

I mechanically altered my Open Loop AFR's, by reducing the fuel pressure, with my adjustable FPR. It is at least in the mid 11's now.

Until I reconnect my aftermarket EMS and tune it properly.

 

I'll have to look at the 02 sensor rating after I get off of work but the fuel status says closed loop

 

I watched the o2 sensors and they seem to be pretty constant with little to no rise and fall. the only variation is when I press the gas pedal or release it

 

There is a graphing option on the main screen. you can see the o2 variations better there.

 

Ok, I just wanted up my truck and used the graph function while at idle. Both the O2 1×2 and the O2 2×2 were constant at 0.0

 

Are you sure the sensors you're reading are the correct ones? Are they green in the add display Guage list when you add them? Where are you located, if nearby I'd be happy to meet up and help.

 

Honestly I don't remember, but I will look again later on today. I live in Georgia so I'm a little far away. My parents were in Boone 2 weeks ago though!

 

The first picture is at idle and the others are while driving.

 

Yea, that definitely doesn't look right. Are you sure you uninstalled all pieces of the unichip? Which one do you have?

 

Yeah, it's the plug-n-play kit. it's completely disconnected and on my kitchen counter.

 

The high value in LTFT1 in IDLE and OPEN LOOP is stored in memory. It can be reset disconnecting the batery to let the ECU learn again running. In close loop it is taken from O2 Reading. If the high value is present only in idle and going well in road, as you can notice in the graphs; the cause could be a leaking vacumm. Notice the great amount of air flow at 40 miles. This compensates the leaking. I hope this help you.
Sorry for my english.