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VTEC Solenoid High Voltage CEL S300 -No boost past 6psi. Thoughts?

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Old Sep 18, 2021 | 10:45 PM
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Default VTEC Solenoid High Voltage CEL S300 -No boost past 6psi. Thoughts?

Hey guys I’m wondering if anyone can help me pinpoint this issue I’m having. My car won’t build boost past 6 psi. Earlier, I nailed it and it fell flat on its face and Hondata showed a code 2649 and said vtech solenoid high voltage. I just pulled the vtech solenoid it looked fine- clean, clear, and no clogs. The car won’t even build up to gate pressure.

Also, it’s an OBD2B and I have a 10 pin factory harness. Do I need a 10 pin distributor? It had a 9 pin distributor when I bought it

Any ideas? Thanks.
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Old Sep 18, 2021 | 10:52 PM
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Default re: VTEC Solenoid High Voltage CEL S300 -No boost past 6psi. Thoughts?

Originally Posted by alhara23
Hey guys I’m wondering if anyone can help me pinpoint this issue I’m having. My car won’t build boost past 6 psi. Earlier, I nailed it and it fell flat on its face and Hondata showed a code 2649 and said vtech solenoid high voltage. I just pulled the vtech solenoid it looked fine- clean, clear, and no clogs. The car won’t even build up to gate pressure.

Also, it’s an OBD2B and I have a 10 pin factory harness. Do I need a 10 pin distributor? It had a 9 pin distributor when I bought it

Any ideas? Thanks.
What are you using for engine management/ to tune with?
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Old Sep 18, 2021 | 11:23 PM
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Default re: VTEC Solenoid High Voltage CEL S300 -No boost past 6psi. Thoughts?

S300
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Old Sep 19, 2021 | 09:54 PM
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From: San Antonio, TX
Default re: VTEC Solenoid High Voltage CEL S300 -No boost past 6psi. Thoughts?

Originally Posted by alhara23
S300
Hopefully someone else will chime in with experience. I’m not sure about the 9 pin or 10 pin distributor, but is seems important.
As for the car not building boost up to the wastegate level, I’ve heard it’s a Manifold Absolute Pressure sensor (MAP) problem and not a VTEC problem. But I’m unsure on this one.
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