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Where is vtec grounded too w/ oem harness.

Old 05-19-2009, 09:09 PM
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Default Where is vtec grounded too w/ oem harness.

i finally have no check engine lights when the car is running but i still get a code 21 and 22 when i check it. vtec definitly is working somewhat now (after re wiring it.). but not sure why the codes are going off.. i disconnected my battery to reset it but still the same.

the vtec wires are stock in the engine harness (si) but im not sure where the ground on the green connector is ran too. i just wanted to check it and make sure. anyone know?

its a d15b 95' CX hatch. Si harness, cx dash harness incase your wondering.

it feels fast now but i didnt know if vtec could "half" work or not...
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Old 05-20-2009, 04:29 PM
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all i need to know is where vtec is grounded to on a factory harness. (obd1) someone has to know this off the top of their head...
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Old 05-20-2009, 06:41 PM
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its grounded to the head
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Old 05-21-2009, 02:20 PM
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oh... well i was talking about the black wire on the green connector.. i must be confused.. but anyways i checked it yesterday and all seems good.. still throwing those codes though...

oil level is full and everything is clean.
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Old 05-22-2009, 04:02 PM
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I grounded mine to the engine or just any ground.
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Old 05-22-2009, 04:07 PM
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the wire going to the solenoid is a positive from the ecu.

vtec is either on or off, so no "half working".

is your ecu chipped?
did you run the extra wires from the ecu to the engine harness?
are you running a p28 ecu?
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Old 05-22-2009, 05:25 PM
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Did you even disconnect your battery to remove the codes? If not disconnect it for a few minutes then try it.
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Old 05-28-2009, 10:41 PM
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i use a ring terminal and ground it to the 10mm bolt of the solenoid
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Old 06-03-2009, 08:04 PM
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i beleive it shares the ground connector thats on the t-stat housing.
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Old 06-03-2009, 09:04 PM
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Originally Posted by turbo750 View Post
i beleive it shares the ground connector thats on the t-stat housing.
you are wrong please stop post whoring wrong information
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