Strange SAFC readings.
Hi guys,
I got a D16A9 (yep another EDM), and i just hooked up the safc-2. I'm pretty sure i wired it in right, but i'm getting some very strange readings. I have no fule corrections programmed in at the moment. Black, Brown - Earthed Red - Ignition power Yellow - MAP input (ECU side) White - MAP output (MAP sensor side) Green - RPM Grey - TPS Now for the strange readings ... The rpms read 3000+ when idling The throtle position doesn't register properly Its detecting knock even tho the that perticular wire isn't connected (purple one) Battery voltage is read 13.9v even tho the multimeter says 14.3 when idling Any help would be most appreciated ;D Thanks. |
Re:Strange SAFC readings.
Black, Brown - Earthed __________________ Best Car Insurance | Auto Protection Today | FREE Trade-In Quote |
Re:Strange SAFC readings.
ECU - Earth
The brown is closer to the ecu and the black is aproximately 10mm away from the brown. The TPS sensot seems ok when diving ... i think it was me being a bit dence, but the rpm problem is still there ... the safc reads 9999rpm when you are only doing about 3000 ::) Tanks |
Re:Strange SAFC readings.
Maybe the rpm signal wire is loose or something. Also, check the connections on the distributer because that is where the ecu gets the rpm signal.
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Re:Strange SAFC readings.
Make sure you set it to a 4 cylinder rising throttle :)
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Re:Strange SAFC readings.
Yellow - MAP input (ECU side)
White - MAP output (MAP sensor side) Maybe I'm slow but wouldn't the map sensor provide an input to the safc which then modifies it ands sends the output to the ecu. I think you have these two wires switched. But I don't claim to know anything so tits just a suggestion. good luck. |
Re:Strange SAFC readings.
no you're right... your signal is supposed to come in from the MAP sensor to the AFC, then exit the AFC to the ECU.
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Re:Strange SAFC readings.
Yes, that is correct. He has the wires hooked up right. Yellow goes to the ecu and white goes to the map. He just marked them wrong. Just make sure the settings are all correct for the car and if thats not it, its probably a bad AFC. The only other thing I could think of is maybe a bad sensor? ???
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Re:Strange SAFC readings.
Is your tachometer reading 3000 RPM to or just the SAFC?
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Re:Strange SAFC readings.
The tach reads the rpm's fine and as should be, its just the safc :-\ By the tine the tack is at 3000 the safc is reading 9999.
I'm going to see if i can get a rpm reading from another location and see if that makes a difference. Besides the rmp all else seems fine, i havn't done any adjustments to the fule yet as i'm not satisfied with the operation of the unit. Cheers. |
Re:Strange SAFC readings.
hmmm prior to your installation was your car running fucked up? That signal to the SAFC is what the ECU is reading, there is a seperate wire to the tachometer.
I'm still willing to bet its somewhere in the settings incorrect (wrong type of car or something). |
Re:Strange SAFC readings.
Got it all sorted ;D
The settings were cool and so was the wiring. But for some reason the SAFC didn't like the rpm feed to the ECU. I took the RPM feed from the tach and its reading the rpms fine now. May just be my car or the EDM cars ... who knows ... lol The car was working fine before hand and is still continuing to do so, but i have no A/F gauge installed at the moment so don't want to mess with the fule settings. But it should be turbo'd soon ;D Cheers |
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