I have an innovative LC1 WB02 sending signal to the ecu. When I connect the S300 to the ecu, sometimes the AF readings are fine... fairly close to the gauge readings but once I start driving, the S300 readings go a bit off. So I adjust the offset to compensate and things seem fine... but...
the other day on the dyno, I noticed the readings would vary from one run to another. On one run, the readings were COMPLETELY out of whack... the actual gauge (XD16) reads fine, but the S300 was seeing 11's when the afrs were in the 12's and 13's. This is very odd as I needed to adjust the offset 3 or 4 times during different runs to make the S300 sync up to the WB gauge. I can't trust these numbers in my street datalogs now since nothing seems to be consistent.
What can cause this ? ANy help would be good...
Fluctuating WB02 output ?
Fluctuating WB02 output ?
Trying hard to think I'm fast....
similar issue here,but strangely,the other way around(but is consistently the same reading not jumping around like yours...
u sync up the gauge & s300 at idle with an offset,
the further u lean on the gas, the more rich the gauge reads over the s300,
by about a full point at WOT,ie gauge reading 12.1,s300 reading 13.1.
its like the s300 isnt reading in a linear fashion(ELD input btw),even though the LC-1 analog out is set to & supplying a linear & correct reading when u compare a voltmeter next to the XD-16.
pull off the voltmeter,attach back to the ecu again & same thing, s300 non-linear incorrect reading.
even tried changing the analog out to 0-5V>10-20AF linear as per the plx setting...
same crap happens.....
geez,cant wait to get off this ELD crap & setup my D12 input,see if that works......
u sync up the gauge & s300 at idle with an offset,
the further u lean on the gas, the more rich the gauge reads over the s300,
by about a full point at WOT,ie gauge reading 12.1,s300 reading 13.1.
its like the s300 isnt reading in a linear fashion(ELD input btw),even though the LC-1 analog out is set to & supplying a linear & correct reading when u compare a voltmeter next to the XD-16.
pull off the voltmeter,attach back to the ecu again & same thing, s300 non-linear incorrect reading.
even tried changing the analog out to 0-5V>10-20AF linear as per the plx setting...
same crap happens.....
geez,cant wait to get off this ELD crap & setup my D12 input,see if that works......
dont want to hijack,but if it helps the OP,
ive tried many different combinations of power & grounding to the WB,
powering off seperate ign source,
seperating heater ground,
swapping the analog & system grounds to many different places,
swapping between A26/B2 ground & A23/24 ground,
grounding to chassis,
resetting,recalibrating,rechecking analog calibrations
u name it,ive tried it,to no good result.....
at present its all directly connected(soldered very well) within an inch of the ecu plugs,
system & heater ground to A26 ground,
analog ground to D22 sensor ground,
power off A25 ECU ign power.....
still no good result......
analog signal is spitting out perfectly good volts,
somehow this all changes once it gets plugged back to the ecu, past the ecu plug into the ELD circuit......
ive tried many different combinations of power & grounding to the WB,
powering off seperate ign source,
seperating heater ground,
swapping the analog & system grounds to many different places,
swapping between A26/B2 ground & A23/24 ground,
grounding to chassis,
resetting,recalibrating,rechecking analog calibrations
u name it,ive tried it,to no good result.....
at present its all directly connected(soldered very well) within an inch of the ecu plugs,
system & heater ground to A26 ground,
analog ground to D22 sensor ground,
power off A25 ECU ign power.....
still no good result......
analog signal is spitting out perfectly good volts,
somehow this all changes once it gets plugged back to the ecu, past the ecu plug into the ELD circuit......
I have the same setup as fly_n and going to D12.
I've played with the voltage lambda conversion table and currently have 0=7.35; 1.67=14.0; 5=22.35
Setting the voltage offset to match at idle always... even hold the throttle at various intervals to compare the gauge reading to the S300 and alter the offset to match. But under load, things seem to get gamey.
Put the car on the dyno the other day and it was 50/50. Some runs it seemed pretty close and others it was up to TWO POINTS richer according to the S300 numbers. Car running 13.2 and the S300 seeing 11.1-11.4
Hoping the answer won't be "PLX" as I hear spewed on other forums. I bought the S300 unit over 'investing' in crome, ectune or the other development systems because I see hondata as the most complete system. I have seen crome units have a similar problem, but not near 2 points. This is very disappointing to say the least. If the problem is a grounding or wiring issue, I'd take the blame, but all wiring has been done correctly and I've tried switching ground sources from the ecu to direct to battery as well as solid chassis grounding points with similar results.
headache !!! I refuse to keep datalog info from the track or street because I can't trust if the numbers are correct.
I've played with the voltage lambda conversion table and currently have 0=7.35; 1.67=14.0; 5=22.35
Setting the voltage offset to match at idle always... even hold the throttle at various intervals to compare the gauge reading to the S300 and alter the offset to match. But under load, things seem to get gamey.
Put the car on the dyno the other day and it was 50/50. Some runs it seemed pretty close and others it was up to TWO POINTS richer according to the S300 numbers. Car running 13.2 and the S300 seeing 11.1-11.4
Hoping the answer won't be "PLX" as I hear spewed on other forums. I bought the S300 unit over 'investing' in crome, ectune or the other development systems because I see hondata as the most complete system. I have seen crome units have a similar problem, but not near 2 points. This is very disappointing to say the least. If the problem is a grounding or wiring issue, I'd take the blame, but all wiring has been done correctly and I've tried switching ground sources from the ecu to direct to battery as well as solid chassis grounding points with similar results.
headache !!! I refuse to keep datalog info from the track or street because I can't trust if the numbers are correct.
Trying hard to think I'm fast....