EH Civic Vei to D15b

Hi Guys,

I'm having an issue with the engine I've recently put into my civic sedan,

It's a Vei.. so it would have been originally a D15z? That I replaced with a D16b.

The car idles great, no smoke coming out of the exhaust. But the engine "hesitates" and losses power when I'm coasting through gears or randomly in general. It shudders and losses power, then it'll jerk and power will be on again

When the engine is cold, or under load, the car revs fine though. Any suggestions as to what the problem may be?

what ecu are you running?

Still the same ecu

might have something to do with it.... D15z uses VTEC-E which is very different and possibly screwing with your timing...

Ah okay... would you know what ECU I can try and source that would work?

Best sticking to an ECU that matches the engine mate IE D15B. Shouldn't be too hard to source here on OH or a wrecker.

Thanks guys :) I'll giv that a try

Check ecu for codes man. My d15 acted strange like that, was code 7 - tps sensor. I changed that and cars been fine since, the bucking and hesitation ain't fun at all.

yeah it's annoying.. the car idles perfectly and seems like a healthy motor