Tuning I5 w/ wideband

[blucreek]

I am trying to find .hst to tune a I5 Canyon's multiple VE tables w/ a wideband(LM1). I found and downloaded the LTFT ones. Can I just
convert those?


chris

[Bill@HPTuners]

yeah just change the sensor to afr error from LTFT.

[blucreek]

Can I use the front sensor? or am I restricted to the rear behind the cat?

[Russ K]

Just install the WB in place of the front O2 sensor. This way the vehicle stays in open loop.

Russ Kemp

[blucreek]

Thanks,

I am gathering info now, I'll post .cfg & .hst files as I am trying to build now, before I start tuning.I tried to change the LTFT sensor to AFR error, but I only see AFR and Comm. AFR to choose from. I have a custom PID for my LM1 so HPT and LM1 read the same.

[blucreek]

Here is my SD tune to start w/ .......
I plan on using the front O2 w/ my LM1, will I need to go to the Eng. Diag./ DTC and disable the front O2 to use that bung?



chris

[Russ K]

No need to disable any O2 codes, or to disable closed loop. The engine will just stay in open loop with the O2 unplugged/removed.

Russ Kemp

[blucreek]

Ok Thanks,
I'm on about my 3rd round of tuning the VE(s) via wideband.
Everything is going OK so far, except for the fact I see all kinds of KR.
We'll get to that in a couple of hours.......




chris

[EC_Tune]

Are you seeing Total Knock Retard or Knock Retard. Total KR includes burst KR which is VERY aggressive on the I5's.

[blucreek]

8hrs in VE's and MAF w/ LM1 in front sensor. everything seemed to be fine, and respond well as I mult. by 1/2 %. everything was between +/- 4%.

I think it was total KR that I was logging, where I saw alot of 3 n 4's(max view)all over above 15% TPS.
To tune the timing, I need to be logging Burst and Totak KR?


chris

[blucreek]

Attached are the .cfg and .hpt files that I ended up with so far.
I modified the VE tables as well as the MAF via LM1. The truck is bone stock w/ 6k miles.
All comments accepted

chris

[stevoz71]

Chris...is this on a 3.5 or 3.7 I5? How's she running....made any changes?

Stevo

[Justin@VMP]

Where are the parameter(s) to turn off the PE delay on an 04 I5?

[Bill@HPTuners]

Where are the parameter(s) to turn off the PE delay on an 04 I5?

Engine-fuel control-power enrichment.

[blucreek]

I think it's a 3.5.
I gotta hook back up this weekend, I forgot to turn off the speedlimiter . I'm gonna hook LM1 back and check the tune I left in it. Although he says the truck runs great.