I currently have a 00 right hand cav with an ecotec boosted swap. Full glowshift cluster set up. Im having some troubles trying to locate the tach signal from the engine harness, pcm, and bcm. Does anyone know which wire is the tach wire for an 03 ecotec?

Enjoy life while you can, because you only have one shot. So go BIG or go home.

ran into the same problem on my 03 eco (sunfire) all the wires going between the ecm and ignition module are only good for use by the ecm. ended up buying a tach adapter made by sunpro, removed the ignition module, put the bare ends of the wires from the adapter between connector seal and connector and pushed them into two of the female ends. working great for six months

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105015-5860
105015-5860
105015-5940
0 433 171 134
0 433 171 137
0 433 171 146
5611065 H60S30A538
5611650 BDL110S6133
5611735 BDL110S6267
6801082 6801082
6801087 6801087
6801088 6801088
DN10PDN130
DN0PDN121
HL176S27D525P2
2418455518 2455-518
2418455714 2455-714
9401087506 9087-506
134151-4120 P121
134151-4920 P129
134151-6420 P143
NOZZLE DENSO 093400-7690 DN10PDN129
NOZZLE DENSO 093400-7700 DN10PDN130
NOZZLE DENSO 093400-8220 DN0PDN121
131110-9320 131110-9420 131160-0320

When we make the 2.2 stand alone system. we just pick up the tach signal from pinJ1-31, add a resistor to ignition,and your set. Questions? give me a call Steve Humphrey 909 910 3867