Hi there..

I have finally installed the LC1 wideband kit on my 87 Camaro.

Now I am going to tell you about some tuning problems that appeared today.

The kit is installed correctly and is working great. The gauge shows the Air/fuel ratio and is working.

The problem is that I can't make my Ostrich 2 to work.
The Ostrich 2.0 have worked out for me before but that was before I got the
Lc1 kit. Back then I tried to do some realtime emulation and everything worked out pretty good.

I also have a ALDL datalog cable which I bought from aldlcable.com.
That cable is also not working now, but have worked earlier.

The only differences at the ECM is that I connected the Analog output 1 (yellow wire) from the Lc1 to the D7 port at the ECM. That was the old O2 signal. That is what the instructions manuals tells me to do.

I use TunerPRO for the tuning. The program find the Ostrich 2.0 and I upload the BIN file which suits my car but car will not start when emulating.
The car starts but idles so erraticaly it dies in just a second or two.
Any ideas???

Also the ALDL doesn't show any values at all, even though it find the cable and everything.

Any ideas of what this could be??

The car is a 87 MAF 305TPI engine which I tune in 6E.
The stock PROM is from a 88 305 TPI that I guess is 32b

Please help me out.
I am sorry about my bad explaining but I am having trouble
explaining perfect since english is not my main language.
Hope you understand..

 

Could be that the reaction is too fast compared to the std NB sensor.
Try using the filtering options in the LC1 software to see if that helps.
Some setups do not work well (as I've heard) using the NB input for control.
I use my std NB with the ECM and use the LC1 as a reference device to tweak how the ECM reacts to the regular sensor. Then once you go to PE/WOT the BLM goes to 128 and you just look at the WB to determine where fuel changes are needed.
If you can, use the brown wire output at 0-5 volt setting for full range and wire it into an open input while configuring the datastream to read it.
HTH

 

It could be I guess.
But what's strange to me is that when I use my stock Eprom chip in the ECM the car starts out perfect. Idles okay and drives okay.
And the wideband sensor is working perfect. It shows the AFR all the time.

But my Fuel/air ratio is way out of control so I want to tune my car to get the best out of it. It idles around 20.1 or something like that. Which is a little bit to lean if you ask me

Anyway, as soon as I replace the Chip with the ostrich unit everything is messed up. I load the same BIN, XDF and the definition file in to TunerPRO, but still won't start out. Emulation is on and TunerPRO find the cable.

The Fan is starting when I put ignition on and after some cranking the car starts and jumps up to 1600rpm and goes down and up again with some strange noises from engine. I guess detonation and such things appear so I just turn off ignition at once

So I am just a little confused. I have used ostrich 2 on this ECM before without any problems. The only modified thing now is the wideband.

I have the digital gauge mounted to my A-pillar so I watch the AFR rating all the time. That gauge wanted to use the brown (analog 2) cable of the LC1 kit. Is that wrong or what???