Machine Head

OK so the swap is in, the engine/tranny from Hmotors was clean and started up on the first try. The car purs like a kitten at idle however on the few test runs I have taken it feels like it just looses power at 6500rpm.

I have no CEL's showing up, and I also swapped in the ECU and ran all the proper Vtec wires. I will admit I could only find ECU PNS for 1 of the slots, I could not find a Pin small enough for the 2nd(D4) slot so I did the old twist and Jam method. This thing just feels like it looses major power after 6500 RPM and if I'm right that's when the stock vtech should kick in. Compression test shows this engine to be in top shape.. Any ideas?

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Orlando

RIP Jape...

ancient

vtec and it kicks in at 5400 rpm

You must have some wiring messed up

DOHCVTEC190

Not sure if I can help the actual problem but stock VTEC should kick in at around ~5250RPMS. Good luck with it though.

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2008 BMW 335i Coupe - Jet Black/Black Dakota Leather/Brushed Aluminum Trim, Premium Package, Sport Package, STEPTRONIC, Logic7, Comfort Access, Heated Front Seats, iPod and USB Adapter

Machine Head

I thought if I had wired the VTEC worng I'd get some kind of CEL. IS there anyway to test it? I do notice after hard runs my A/F goes way rich

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Orlando

RIP Jape...

Mattsy93vtec

vtec solenoid? though you would prolly get a cel for that.

make sure the oil level is up (has a lot to do with vtec, not enough oil = no vtec).

make sure all your ignition and crap is hooked up right.

if thats not it, than go recheck your wiring, using the proper pins this time around

- matt

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'02 Maxima SE
'93 Prelude vtec - sold

AlexLude

that's why .. go with H23 man!! hahahah ;-)

- A

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Mattsy93vtec

dont hate alex

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'02 Maxima SE
'93 Prelude vtec - sold

preludestud11

He can hate all he wants, he has a pimptastic lude. Ohh and I agree the h23 is better, just put a vtec head on it. H23 vtec 4ws owns all!

Rich

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4thGenReady2Go

till something breaks, bottom line, they weren't meant for each other, like Burt and Lonnie.

Machine, I have nothing to offer, but I've read enough threads like this to know that the people posting rechecked the wiring and the problem was solved. Good luck and let us know.

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http://www.kiva.org

[SUB[EX]

yo
Put some miles on her.
Both of my engines were sluggish after the swap. But after a few weeks she felt better. Maby run some octain booster. The injectors take some time i believe.

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AIM:ISUBIEXI
S/SI/Vtec Hybrid. RS*R Header, JDM downpipe, Custom Downpipe back 2.25 Exhaust, Intake, ""Mugen"" Programmed p13, No balancer belt, no AC, Fidanza Flywheel, ACT clutch, SI trans, Power Slot rotors, SkunkII Coilovers, Enki Rims.

[SUB[EX]

So far im going to say h22a>h23vtec . But thats only because mine only lasted 400 miles. Im going to be trying again with a new bottom end most likely next week.

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AIM:ISUBIEXI
S/SI/Vtec Hybrid. RS*R Header, JDM downpipe, Custom Downpipe back 2.25 Exhaust, Intake, ""Mugen"" Programmed p13, No balancer belt, no AC, Fidanza Flywheel, ACT clutch, SI trans, Power Slot rotors, SkunkII Coilovers, Enki Rims.