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ECMlink fresh engine idle issues

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IHeartMyHonda

20+ Year Contributor
698
230
Jul 12, 2006
murfreesboro, Tennessee
Failry new to DSMLink, so I'm consulting the community for advice

I'm attaching a log that was taken at idle. It's short, but the specific problem that I'm having occurs around the 65 sec mark. It's a fresh engine and all of the prerequisites have been verified (boost leak, fuel pressure, spark plug gap, etc). I'm aware that the fuel pressure solenoid has custom specs enabled, but it is not hooked up currently.

stock displacement 2g 7 bolt with BC101 cams
speed density with no MAF
ID1000 injectors with gm flex fuel
AEM wideband wired in a simulating front o2

My problem is that the car wants to die when any significant throttle is applied. The AFRatioEst and Wideband channels go way out of sync. My assumption is that the SD table is way out of whack but I welcome any advice or insight given.
 

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In Direct Access, under InjBatteryAdj, change the values to this:

7v: 3450
9v: 2145
12v: 1390
14v: 1150
16v: 920
19v: 830

These values are the 'shape' or 'personality' specific to ID1000 injectors. Consider these values permanent.

Next, assuming your base fuel pressure is 43.5 and you're using gasoline, global should be -50.1. That would suggest the injectors flow about 900cc, which they do.

Next, have the car fully warmed up, then compare AFRatioEST to AFR (wideband) and adjust only deadtime on the fuel tab to get AFRatioEST to match AFR.

The SD table looks very good to me and I would not touch it right now.
 
In Direct Access, under InjBatteryAdj, change the values to this:

7v: 3450
9v: 2145
12v: 1390
14v: 1150
16v: 920
19v: 830

These values are the 'shape' or 'personality' specific to ID1000 injectors. Consider these values permanent.

Next, assuming your base fuel pressure is 43.5 and you're using gasoline, global should be -50.1. That would suggest the injectors flow about 900cc, which they do.

Next, have the car fully warmed up, then compare AFRatioEST to AFR (wideband) and adjust only deadtime on the fuel tab to get AFRatioEST to match AFR.

The SD table looks very good to me and I would not touch it right now.
Thanks for the suggestions. I'm running flex fuel and have a gm flex sensor installed. I'll make those adjustments and see how it does.
 
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