98 civic dx losing power

[Roger Ward]

Ok thanks for the help. Il prob jus fix the current issues and fix up the body til i can buy my b swap then go from there

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[Roger Ward]

Ok guys i was wrong on the engine. I thought it was the y5 because all the oil change receipts put the y5 down. The block is a d16y7 and the tranny on one side says e5f and the serial shows s40. Does the y7 require 2 o2 sensors as well? The engine has 2 o2 plugs so im not sure. I also see it is not vtec so would a vtec head b a good investment or should i jus use it as is and turbo it?

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[Joe Mason]

Yes, the y7 uses two sensors also. Both in front of the motor. Switching this motor to VTEC is up to you. Not really worth it in my opinion.

 

[Roger Ward]

I wasn sure if it would be worth it or not. I saw there was maybe 12hp gain if i had they y5 and went to the y8 head. And i was confused on the sensors because it was made to sound like the only one 96-00 that had two was the y5

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[lethal6]

Like said over a week ago by @XpL0d3r, ANYTHING OBDII is going to be 2 O2 sensors. Unless the car was swapped and reverted back to OBDI for tuning purposes, it will need 2 oxygen sensors and a cat inbetween or it will throw the codes.

 

[Roger Ward]

The cat appears to be gone. Would it be hard to convert to obd1?

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