need some help bought civic with 97 acura gsr swap running on the obdo harness seemed to run fine for several months even endured 2400 mile trip to ship home now seems like it is comming into a little electrical prob it starts it runs for a while then seems like when either I am driving it or reving it , it will bog down like it is not getting spark checked all plugs and wires changed them and the coil upgraded to msd external coil,msd csp rotor changed the o2 sensor and all connections the only thing is that I am running with no thermostat now I know without the right tep the vtech cylinoid doesnt engage but would that couse power los like that?

Thats sounds weird... it shouldnt cause power loss. I would have guessed to O2 sensor, but u said u checked that already.

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-brian

The thing is that the 97 acura grs calls for a four wire o2 sensor and i have the hb si o2 one wire

tell green the pic are in the photo gallery

Dont they sell a harness? I know alot of people have done that swap, I figured they would have that problem worked out.

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-brian

crank angle sensor that has been my problem the whole time and damn it is exspensive 250 dollars and it took me 4 hours to track it down

yea they sell the harness...i believe skunk2 makes 1 for a decent price...

and did he say vtech???

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RiCh$

seriously.............its ****in vtec.

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1994 Civic coupe. B18C, A few Bolt Ons.

im a tech and it sounds like theres a simple misfire in one of the engine cylinders or maybe just a change(the coils) when you run the engine disconect each coil 1 by 1 on top of each cylinder and if it stalls and turns off do it again to the other cylinder coil and keep checking like that cause i had a problem come into my shop just like that one time and i also thought it was an electrical problem but it was a simple coil. but anyways check that out n see if it is a misfire..now when u disconect the coil and it stays running fine then thats the coil thats messed up....but its just a related problem i once had it maybe something else just giving you a suggestion so you don't be allday like i was looking thru wiring diagrams and all that

there's no such thing as a civic hatchback si ek, just thought i'd throw that out there.