soslowEH2

i just swapped a b7 into my hatch. previously had a b8 in it.

it's struggling to maintain power through accel. and almost feels like i'm running on 2 cylinders. i'm running the b8 5 speed ecu. could my issues stem from running the wrong ecu?

replaced the headgasket, intake gasket, z6 intake and throttle body, everything is tightened to spec.





and sorry mods! please move if i posted this wrong. debated on here or engine management since it's mostly and ecu question.

24TEN

iTrader: (2)

That and the fuel injectors if you reused your CX fuel injectors. I converted my B8 to DX spec just like yours with a Z6 intake manifold. It stumbled and was sluggish until I switched injectors (I had the correct ECU already). Using the CX ECU and injectors can only work to a point before it starts acting funny. All else being equal, essentially you just added more air than the ECU is expecting and it can only calibrate/compensate so much.

Put it this way, the ECU doesn't know you swapped engines and it doesn't care. All it knows is that it's getting signals from sensors with the assumption that the signals are being generated from the correct engine being used. When it makes adjustments it does so based on the fuel maps for the assumed correct engine.

flmzero13

X2

soslowEH2

Wonderful! Thanks guys

marc_b16turbo

hey i havent use this site realy often i have a problem with my B16A2 Turbo with wiseco forge piston 9-0-1 compression and eagle H beam conecting rods golden eagle block guard. Rebuilt bottom end with ACL Race bearings and washers, block was honed and cleaned. ARP headstuds,and rod bolts,1000cc precision injectors GSR Cams, Civic Type R intake manifold, AEM fuel rail and liquid filled guage. 2000 SIR Transmission, XTD stage 5 clutch, Fidanza 10lbs flywheel.Precision CEA 6262 .82a/r, Greddy Type RS BOV, Turbonetics evolution waste gate.The problem is that i have got my wiseco pistons and eagle H beam rods at a shop maritime engine they dind my holle block and then i pout my head on and put it in the car he toll me that my pistons to wall clearence was a bit over coss i dind the error of odering stock bore. The clearence was .005 he told me that it was supose to be .003 anyways i put the engine in and start it .The motor was running realy good except i hade an oil leek betwen my motor and trans so i take the car for a drive and i have notice my car was smoking wile accelerating i dind want to push it at all i tought maybe just coss the rings warnt set so i dind like 300 km and the car was still smoking prety bad underload so i got sombody to cheek it and he sayd that my turbo was gone but the turbo only had 300 km as well so i bring it home and cheek my compresion and notice that my first cylinder was 165 psi second was 150 psi the third 165 psi and 4 only had 120 psi i stil had my injector plug in and dint had the gas to the floor but still has way to of in those 2 cylinders.Notice in my 2 cylinder on my top of piston were the valve set the exhaust one it hade fresh oil not burnt on it so now i dont know what to cheek let me know what you guy think thanks ?