Help is this VAFC install normal?
06-27-2003, 01:27 AM
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I just installed my VAFC today, I spliced the wires to my ecu. After the install, I set all the initial settings to the ones recommended. I don't have a check engine light, BUT The weird thing is my idle is weird, It bobs up and down from 800 to 1000rpm. I drove my car into vtec, and everything is good, but when I'm stopped, the car idles like its a race engine. The idle is terrible, I look at the vafc Monitor function, and see its bobbing up and down from 800 to 1000rpms. Is this normal for all VAFC users? I checked my wiring and everything seems in accordance to the manual. But just to be sure, CAN ANYONE GIVE ME THE COLORS OF THE WIRES we're supposed to spice into in the ECU. I don't want to buy a harness, cause I'm broke, but I bought a soldering gun. I realized its hard to solder in that tight spot near the kick panel though. Can anyone give me some suggestions on returning my idle to regular, it was never like this before I installed my VAFC. I have checked all scenarios including: Tapping the map sensor with a screwdriver, unplugging the back up fuse to reset the ECU, any more advice would be really great! I need some help! All 411 would be greatly appreciated! Thanks
=) mark
=) mark
06-27-2003, 06:54 AM
#2
Your idle will get better after a couple days. You probably just reset the ECU by disconnecting its power. Idle sucks ass after the ECU is reset.
BTW, make sure all your narrow throttle fuel corrections are set to 0, and raise you Lo / Hi throttle position settings to at least 50% / 51% (instead of the default 10% / 50%), or the ECU will tune the V-AFC out over time. I have mine set at 80% / 81%.
You also need to get it tuned on a dyno with a wideband O2 sensor, or you could damage your engine.
BTW, make sure all your narrow throttle fuel corrections are set to 0, and raise you Lo / Hi throttle position settings to at least 50% / 51% (instead of the default 10% / 50%), or the ECU will tune the V-AFC out over time. I have mine set at 80% / 81%.
You also need to get it tuned on a dyno with a wideband O2 sensor, or you could damage your engine.
06-28-2003, 04:37 AM
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Today, I spent 2 hours, rewiring my VAFC to the ECU, I bought a butane Soldering Iron from Radio Shack, that thing is crazy! I heated up the wires, and added solder to the wires to fuse them. Everyone should get one of these, I learned how to use it in 10 mins. My VAFC is fixed, everything is PERFECT! Oh yeah, I learned my lesson, NEVER EVER CRIMP ANYTHING TO THE ECU, ALWAYS ALWAYS SOLDER WIRES to the ECU!!! THanks for the great suggestions still! =) mark
06-28-2003, 07:23 AM
#4
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Glad to hear that your VAFC is working. Mine was acting up on me and its the worst feeling. Like Gernby said, your idle is due to the ECU.
Gernby, I changed my throttle settings to the ones you suggested and my vtec was being weird i.e. it is set a 5400/5500 and when I was on 80/81% the car was not going into vtec. As soon as I changed it back to 10/51, the car engaged....
Gernby, I changed my throttle settings to the ones you suggested and my vtec was being weird i.e. it is set a 5400/5500 and when I was on 80/81% the car was not going into vtec. As soon as I changed it back to 10/51, the car engaged....
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azn9imp
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06-28-2003 04:35 AM