What is a G-signal

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WAGSJL
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1993 DOHC. Read the codes and came up with #3 distributor g-signal. I have already change spark plugs, wires and distributor rotor, and cap but still get code. can someone help me at what to look at and what is a g-signal? Thanks, wagsjl
Feb 21, 2007 at 4:53 PM
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KIN CHAN
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year, model, engine size please.
Feb 21, 2007 at 5:31 PM
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WAGSJL
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it is a 1993 DOHC.
Feb 21, 2007 at 5:41 PM
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WAGSJL
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can someone please help me with this?
I have tried to find out from about everyone including dealers what a distributor g-signal is, the car is a 1993 DOHC with a 1.8 engine and we have replaced the plugs, wires, cap, and rotor and still getting the check engine light with this code.

Please help.
Feb 23, 2007 at 4:49 PM
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KIN CHAN
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i thing g- signal is a rpm or cam signal from distributor to the ECM...either an input or acknowledgement signal to the computer..
Feb 23, 2007 at 8:08 PM
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ASEMASTER6371
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Good evening,

The ECM is not seeing a signal from the distributor for engine RPM. When this happens, the ECM will not allow spark or fuel.

You need a new distributor.

What usually happens is oil gets inside the distributor and the parts inside short out.

Roy
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Mar 25, 2020 at 5:24 PM