Zchris

In a tutorial I have seen said that you cannot use a number greater than 99.99 in the fuel table. Is that still true. I can insert numbers over 100. Does this put it in limp mode? Thanks

thanks

And now I've lost it. Anyone want to tell the old guy where I find the Injector Dead Time table. Thanks

Adam, I was using manual mode. It started tuning without hitting F10. I used F10 to set the cell when the green light came on. I did those initial cells unloaded off the dyno. As soon as I put any load on it on the dyno, like just trying to get the wheels rolling the AFR goes to 22.7. Any suggestions?

This ECU is replacing a flaky EMS8860 that usually worked, till it didn't and would loose trigger signal. So the Ignition map was a direct copy and the fuel map as close as I could get in injector on time is a copy. So it should be damn close. Had you spent any time looking at the file you would see the tuned cells and how close they were to there starting point. I should note that this is a 2.4 NA engine w/14:1 compression, large overlap cams and Individual throttle bodies running only TPS.

Engine up and running and used auto tune to fill a few low throttle position cells. Seemed OK. Put car on Dyno an as soon as it sees any load with auto tune on it goes full lean. AFR sensor is wired in to ecu and I see the same lean condition on the Innovate gauge as the laptop in the Link screen shot. Attached is the tune file. What the hell did I do wrong. Thanks miataultralow.pclr

Thanks Adam. Found it.

Can I use the 4d table in fuel to trim the injector pulse width to compensate for a dropping battery voltage in a no alternator race car. And if so is the number I put in a direct multiplyer. So a 1 would have no effect? If so I can figure the rest out by trial and error by incremental voltage changes. thanks

Is there anyway to view the actual injector pulsewidth in ms in a map like the tuning map. Thanks

Simon, its already on TPS. It has no idle control stepper motor. What else drives Lambda control. Does the "Fuel Main" "Open Loop Lambda Table" being "ON" drive the fuel map? Thanks

I have a new Atom all wired in. Went thru setting up and it starts great. It is a 4 cyl 2.4 Duratec with 14:1 compression, big overlap cams, IR throttle bodies and SIR. The closed Lambda is off. I have an Innovate LC1 wired into AN Volt 3. Function Lambda 1, Calibration Innovate LC1, Error Low = 0.00, Error high = 5.00. With the Error Value set to 1.00 Lambda it will start fine and after a few seconds surge up in rpm only to stall. When I increase that Lambda value to 10 it will still surge but not stall out. It just idles for several seconds and surges repeatedly. What the heck am I doing wrong. Thanks

Its a tube chassis race car with a solid mounted engine and I have a ECU specific ground strap from the battery, which is in the rear. Can't get more clean and direct. Still doesn't jive well with a "not noisy" ground path using the head. Link must have a reason for wanting 2 separate lines to the engine. Before I connect anything, as a engineer, I need to know the why's. I have found most installers just do what there told without wanting to know why. Especially when counter intuitive. And the big reason to ground to the block is usually for starter motor current draw.

So I'm wiring up my new Atom2 and the last thing I'm doing is the Power Ground. In the manual in section 17.3 is says to attach the 2 Black wires to the back of the head. Now isn't that about the noisiest place you can put a ground as the ignition current is travelling thru the cylinder head. Now I've only wired up 2 other brand of ECU and they both said to "not use the engine" and I always assumed that was because there was no current path at the engine other than the ignition. Please explain if you would. Thanks