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2006 TSX 5500 RPM cut off

Old 01-12-2013, 05:35 PM
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Join Date: Jan 2013
Posts: 6
Default 2006 TSX 5500 RPM cut off

I have a 2006 Acura TSX automatic. Lately i have been having issues with my engine, first of all, i have 2 check engine lights on (Code: P2647) ECU. and the second is VSA light is on.

Computer says check Emission system: im not sure what to do, lately when i "Floor" it, my car cuts the gears power and only revs up to 5500 RPMS, then when i let go of the gas, the gear turns back on but still cannot get past 5500 rpms. The engine would sometimes shake. might have something to do with ECU?

Problem 2 VSA: Since this light is on, i cant use my cruise control, not that thats the problem. I just want to find out what could be the problem, my sensors seem to be fine but i have not really diagnosed the problem.

Can anyone who knows of such issues explain to me what to do? i cant really afford to go to a dealer or mechanic at the moment until thats the only place i can go. thanks!

Last edited by oleglyashenko; 01-12-2013 at 06:20 PM.
Old 01-12-2013, 11:52 PM
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Lets see if one of our mechanic members can figure this out for you..
Old 02-02-2013, 12:10 PM
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Join Date: Jan 2013
Posts: 6

Thought someone could have a solution, but anyways, i still didnt fix the issue, i took the head block off and got to the Vtec Solonoid, cleaned out the filter and replaced the solonoid gasket, got a new high pressure switch and got a second high pressure switch which is connected to the power steering hose in the back of the engine, replaced both of those things and still have the same issue... can someone please get me out of this nightmare... all i remember is i still have "P2647 = VTEC Oil Pressure Switch Circuit High Voltage" what does that mean??
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