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Old 03-24-2012, 07:12 PM
Join Date: Mar 2012
Location: Molalla, OR
Posts: 2
Default 1999 Honda Accord EX 4 Cylinder Vtec

I have been having all kinds of issues with my 1999 Honda Accord EX and have fixed many of them, though I feel many have not needed fixed, but I am still having an issue with my Vtec. Currently I am getting a CEL and code P1259 Vtec malfunctioning. I have literally replaced all of the Vtec system, but it is still malfunctioning. I have oil in my car so that isn't the problem. When I floor it or get around 4,000 rpm my car will pulse, best way to describe it, and I have to let off the gas and lower the rpms. I am not sure why it is doing this and was hoping someone would be able to come up with an answer to help me out. I am tired of spending money on this car and would like to get it back to its normal running conditions. I should add that other than the current issue it is running fine, the idle is fine, it starts fine it just wont kick into Vtec. Any ideas?
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Old 03-24-2012, 07:40 PM
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2005 Acura TSX
Join Date: Sep 2006
Location: Houston, TX
Posts: 10,910

The next step would be to test the wiring to the Vtec. Do you have a shop manual for your accord?
2005 Acura TSX MT
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Old 03-24-2012, 11:45 PM
Join Date: Mar 2012
Location: Molalla, OR
Posts: 2

I do have a Chilton manual for my car, yes. Also, I should have mentioned that the car does not pulse every time the rpms are that high. How would I go about checking the wiring?
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Old 03-24-2012, 11:45 PM

1999, 99, accord, cylender, cylinder, es, forum, honda, info, kind, motor, numbers, oil, problem, problems, tech, vtec

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