Installed EMB + Autotune, problem...
#1
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Installed EMB + Autotune, problem...
I just installed my EMB and olderguy's autotune without much trouble, but when I start my car, it revs up and dies right away, then gives a P0100 code, which is a MAF circuit code. I used a boomslang PnP harness, so I'm not sure what to do. I found the MAF wire at the ecu, and it looks fine, and I haven't touched the actual MAF at all. Any suggestions??
Thanks
Sam
EDIT: It also runs and idles fine if I switch it back to the stock ecu. The problem stays if I unhook the autotune while EMB is connected though.
Thanks
Sam
EDIT: It also runs and idles fine if I switch it back to the stock ecu. The problem stays if I unhook the autotune while EMB is connected though.
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Hmm, I'll have to check into that. Does anyone know exactly what size resistor I need? Does it just go on the MAF signal or the output?
EDIT: After searching, some of the guys with NBs mention a 1K ohm resistor, but I'm still unclear on where it goes.
EDIT 2: I just read on the yahoo group that some NA 1.8's use 3-A-3 instead of 3-A-0 on the rotary switches. Maybe I'll try that, too.
EDIT: After searching, some of the guys with NBs mention a 1K ohm resistor, but I'm still unclear on where it goes.
EDIT 2: I just read on the yahoo group that some NA 1.8's use 3-A-3 instead of 3-A-0 on the rotary switches. Maybe I'll try that, too.
Last edited by SamS; 10-19-2007 at 06:01 PM.
#13
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Well, I'm going home for the weekend, so I'll inspect the boomslang harness, the jumpers, and try switching to 3-A-3 (that can't hurt anything, right?).
Still haven't figured out exactly what to do with a resistor and the MAF.
Still haven't figured out exactly what to do with a resistor and the MAF.
#14
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Update:
The jumpers are set up correctly.
I tried 3-A-3 and it started slightly easier, but still get the P0100 cel.
Looking at the readout on my computer while it is running, the MAF input is like 1.7V while the MAF output reads zero (whether the rotary is at 3-A-0 or 3-A-3). I didn't remember seeing this before. I guess I'll start inspecting the boomslang harness, though I hate to believe that my $200 harness was made incorrectly.
The jumpers are set up correctly.
I tried 3-A-3 and it started slightly easier, but still get the P0100 cel.
Looking at the readout on my computer while it is running, the MAF input is like 1.7V while the MAF output reads zero (whether the rotary is at 3-A-0 or 3-A-3). I didn't remember seeing this before. I guess I'll start inspecting the boomslang harness, though I hate to believe that my $200 harness was made incorrectly.
#15
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The wires all appear to be in the correct positions, including the airflow output wire. I don't see why the emanage isn't outputing any voltage, and it doesn't seem that a resistor on the MAF itself would affect the output from the emanage.
Someone help
Someone help
#20
Autotune feeds a signal to the Emanage TPS input. For timing you will need either a MAF or MAP (preferably MAP) input to the Emanage. If your MAP(pressure sensor) input and MAP sensor is present, you do not need the MAF signal for Autotune.
I would wonder, however, why you show an input and no output. Are you sure all your grounds are common?
I would wonder, however, why you show an input and no output. Are you sure all your grounds are common?