Air/Fuel gauge

markv

Still weird that the fan went on and is now off again without apparent reason? Did they read it with the tech2?

Correct, as far as I know everything fromt he ECU is ground switched.

As soon as I got the car running again (still missing my exhaust 🙁 ) I'm going to see if I can get everything working with the LC1 as narrowband primary sensor. It should work..

Mark

Steve_Crisp

Nothing on the Tech2 Mark - strange!

I'm sure that the LC-1 will do the primary job, but I just need to be more cautious.

Thanks,

Steve

Steve_Crisp

... and not get the black and grey wires mixed up! Black is not earth, grey is. What a muppit! 63..

rabidh

Steve Crisp said:
... and not get the black and grey wires mixed up! Black is not earth, grey is. What a muppit! 63..

:roll: I did that with my O2Sim at first. Didn't even bother looking it up, it just seemed obvious that black would be ground! I obviously need to get a bit more used to car wiring 🙂

vocky

well my innovate LC1 lost it's calibration today, which is slightly annoying as it's only done 100 or so miles :roll:

the DB gauge showed 22.4 and flashed 7.4 when driving 🙁

the fix is to disconnect the lambda, switch on the innovate for 20 seconds, switch off the innovate, connect the lambda in air (yes drop the engine tray :evil: ) and follow the 'new' start up procedure

that seems to have fixed it, we shall see....

maybe not a good idea to use the LC1 to control the ecu fuelling what..

Steve_Crisp

Tend to agree if it can't keep it's calibration. Maybe why they don't recommend using it as the primary.

Plan two is therefore to fit the LC1 as a monitor sensor. If I want to mess with the fueling I can do this by altering the output from the standard sensor using either some resistors or an op-amp.

Steve

rabidh

Steve Crisp said:
Plan two is therefore to fit the LC1 as a monitor sensor. If I want to mess with the fueling I can do this by altering the output from the standard sensor using either some resistors or an op-amp.

Easier said than done I think 🙁 I get the impression the ECU only really infers rich or lean from the lambda sensor, not values inbetween - so changing the voltage with an op-amp probably wouldn't help. I imagine you'd have to make something that changed the duty cycle of the signal instead... which, while possible with discrete parts, is probably calling for a microcontroller again 🙁

gaps

Any reason you couldnt fit one of these to a motorbike? G. As i can plug one of my bikes into my laptop but need a rolling road at the mo to get readings!

vocky

can't see why not, it just measures the air/fuel mixture and doesn't matter what petrol engine it's measuring

as long as 12v is available to power it

Steve_Crisp

I checked out my wiring over the last few days. I hadn't made the wiring error after all - I had grey as earth as it should be.

I re-installed with the bung they give you to weld onto the exhaust and installed it as a monitoring lambda only, leaving the car to run on it's own narrow-band sensor. I also fed it with it's own switched 12 volts feed.

Anyway, it still swings around like a demented-thing. Full-lean to full rich etc.

I looked on the innovate website and they say that there's a batch-fault which causes these symptoms whereby it goes into a recalibration-cycle at power-up and then swings between extremes (like mine does).

I really, REALLY, regret buying one of these - what a pain in the arse they are! I've now got to deinstall it and try to get it fixed by someone. I wonder if the supplier is going to be interested? dunno..

Steve

vocky

send it back to where you bought it or to Innovate themselves

I must admit when they work 'they're great' but when they play up.............

Steve_Crisp

Something that makes it all doubly hard, is that on the VX I have to take the underside covers of the engine-bay off every time I want to remove the sensor to go through the calibration sequence - it's not the sort of thing I want to do too often!

Steve

alanoo

You "can" calibrate with the sensor in the exhaust if it is cold and haven't run for a few (lot) hours... but well, not optimal if there is still some fuel left in the system

vocky

Steve Crisp said:
Something that makes it all doubly hard, is that on the VX I have to take the underside covers of the engine-bay off every time I want to remove the sensor to go through the calibration sequence - it's not the sort of thing I want to do too often!

Steve

same here :roll:

rabidh

Maybe you could cut a hole and make a new access panel? Still a load of work though... I guess you could blow compressed air into the exhaust or unplug the injectors and crank the engine over a few times to suck fresh air through?

Must admit it's scaring me a little - I was going to fit mine as the only lambda. Where did you get yours from, did you find out any details about the model numbers affected? I'm a bit worried I could have the same batch!

vocky

mine was direct from the usa, I believe Steve bought his from the uk

alanoo

Mine is working fine and is adjusting the standalone ECU on the fly like it should

But I only have it running for a few hours for the moment

vocky

mine works great, but it did once reset itself :roll:

if it was controlling the ecu then that wouldn't have been fun 🙁

alanoo

Well, on a standalone you usually can config a range of adjustment

for example for my ECU, the wideband input can only adjust +/- 20% from the base injection time table.
will move it down to 8% or maybe even less when the car will be mapped.

Then, we calibrated the LC1 output from 1.00 to 4.00v
If it ouputs anything not it this range, the ECU goes into a lambda error mode (not degraded, it only assumes it is reading a 1.00 lambda (14.7:1) or any other value which you can again setup as you want).

Standalones rocks 🙂

vocky

my new ecu uses it's own lambda, for closed loop running, but it's nice to have the innovate to monitor the fuelling, just need to get it mapped as the base map isn't ideal :roll:

« Previous Page Next Page »