AXiS & Alky

[ShaunKris]

I believe so. Ok I'll tighten the belt on the alt. I have another O2 sensor, I'll swap it out.

 

[ShaunKris]

changed out o2. tightened alt bet.

 

[ShaunKris]

burn around the block.

 

[ShaunKris]

I borrowed a smoke machine from a friend to check for vacuum leaks. The only place I had a leak was at the throttle butterfly axle. The shaft that goes straight through TBody was the only place I noticed any smoke. (Wish I had this machine last year, it is awesome.)

 

[ShaunKris]

here is another run log. from start, warmup run, park.

 

[EricM]

The stock O2 looks more normal now. According to it, it's on the lean side. What are your current axis settings, like in the picture you posted? We can make some adjustments in there.

The wideband is not right. You'll need to ignore that reading for now until we figure it out. Still need to know where the black ground wire goes, the white analog output, and the brown analog ground.

I would put a new IAC in it, or inspect the passageways and make sure it all looks good. It's still erratic.

 

[EricM]

I see in your pic you have a wire going to the MAP input, but there is no MAP reading in powerlogger. Where does that wire go?

 

[ShaunKris]

I see in your pic you have a wire going to the MAP input, but there is no MAP reading in powerlogger. Where does that wire go?

Green wire from under dash.

 

[ShaunKris]

I see in your pic you have a wire going to the MAP input, but there is no MAP reading in powerlogger. Where does that wire go?

Better picture

 

[ShaunKris]

new log with MAP.

 

[ShaunKris]

here's another drive, i added fuel & retarded spark advance.

 

[ShaunKris]

This is the settings for sept2120run3

 

[ShaunKris]

T

The stock O2 looks more normal now. According to it, it's on the lean side. What are your current axis settings, like in the picture you posted? We can make some adjustments in there.

The wideband is not right. You'll need to ignore that reading for now until we figure it out. Still need to know where the black ground wire goes, the white analog output, and the brown analog ground.

I would put a new IAC in it, or inspect the passageways and make sure it all looks good. It's still erratic.

The White analog output goes to the PL.
The Black is Co-ground (w/alky light) to a good ground under dash.
The Brown analog is ground to ECM case.

 

[EricM]

I would try grounding the black wire to the engine, and also moving the brown analog ground to #4 ground on the powerlogger input board. I would do the brown wire first, as that might fix it up.

 

[ShaunKris]

I would try grounding the black wire to the engine, and also moving the brown analog ground to #4 ground on the powerlogger input board. I would do the brown wire first, as that might fix it up.

Ok

 

[ShaunKris]

brown wire grounded #4 on PL startidle file.

 

[ShaunKris]

hey Eric, I got it. my firing order was 180 out. 87 coil on 84 module(not me, previoius mech.) but.. I got a great friend named Matt and that hillbilly figured it out over one beer! lol...

 

[EricM]

Glad you found something. The wideband reading is still not right. I would see if the wideband gauge is matching the powerlogger reading. If they match, then I would be tempted to replace the wideband O2.

Also, the MAP reading is showing 3" of vac even with the engine not running, so that reading won't be right either. I see the volts are low from the MAP, should be around 1.5 or so, engine off, yours is about 1.4v.

 

[ShaunKris]

Glad you found something. The wideband reading is still not right. I would see if the wideband gauge is matching the powerlogger reading. If they match, then I would be tempted to replace the wideband O2.

Also, the MAP reading is showing 3" of vac even with the engine not running, so that reading won't be right either. I see the volts are low from the MAP, should be around 1.5 or so, engine off, yours is about 1.4v.

Ok, if the volts are low from the map, how do I change that?

 

[EricM]

Check the power supply to the MAP sensor, should be close to 5v with key on. Another possibility is a bad MAP sensor.