timing
03-10-2010, 04:13 AM
#2
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Car: Trailblazer EXT 4.2 (Firebird Form)
Engine: 5.1 4bbl
Transmission: 700R4 Mega Raptor Level 4
Axle/Gears: 2.73
Re: timing
Is your distributor cap separate from your coil? if it is then the ignition module underneath the distributor cap has two plugs, I believe you unplug the first one to the left... you will notice a decrease in rpm and your idle will be noticeably different...
03-10-2010, 12:12 PM
#3
Re: timing
what does w/cab mean?
I thought there was a yellow/brown wire on firewall near brake booster. It protrudes out of wire harness with a male/female. Disconneting removes control from ECU. Initial spark timing I recall is somewhere on a label under hood for you car/motor. Mine I recall was 6 dSA.
I thought there was a yellow/brown wire on firewall near brake booster. It protrudes out of wire harness with a male/female. Disconneting removes control from ECU. Initial spark timing I recall is somewhere on a label under hood for you car/motor. Mine I recall was 6 dSA.
03-10-2010, 12:33 PM
#4
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Car: Trailblazer EXT 4.2 (Firebird Form)
Engine: 5.1 4bbl
Transmission: 700R4 Mega Raptor Level 4
Axle/Gears: 2.73
Re: timing
what does w/cab mean?
I thought there was a yellow/brown wire on firewall near brake booster. It protrudes out of wire harness with a male/female. Disconneting removes control from ECU. Initial spark timing I recall is somewhere on a label under hood for you car/motor. Mine I recall was 6 dSA.
I thought there was a yellow/brown wire on firewall near brake booster. It protrudes out of wire harness with a male/female. Disconneting removes control from ECU. Initial spark timing I recall is somewhere on a label under hood for you car/motor. Mine I recall was 6 dSA.
I believe he meant Carb...
you know on the actual prep work, on mine I have to either ground the ECM at the diagnostic port, or pull the connector from the ignition module...
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03-11-2010, 11:21 AM
#8
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Car: check
Engine: check
Transmission: check
Re: timing
For a CCC large cap distributor it is what chads89ta posted. There should be a 4-wire connector near the base of the distributor. The wires exit from the distributor at the base of the cap. Disconnect the 4-wire connector to put the distributor into bypass mode.
RBob.
RBob.
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