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Old 12-15-2010, 02:53 AM   #18 (permalink)
EcoModding Lurker
Join Date: Nov 2010
Location: missouri
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I know this is an old thread but thought this would be as good a place as any to ask. I bought a 94 metro xfi last month. Would it be better to use the red wire which is the ignition reference high or the white wire which is ignition reference low, or does it matter? My service manual says that at the ecm the red wire = light green pin b1 and the white wire = purple pin b9. Has anyone had problems using the wires under the dash as opposed to near the distributor? I only ask because for some reason many seem to have problems tapping into the fuel injector wire near the ecm when installing their mpguino ( which I received about 2 weeks ago but have yet to find the time to install.)
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