ok well iv had the car for about 5 months with the swap NEVER had this problem before if i eas off from a dead stop after like 3000 rpm its sputters until around 5000 then shutts off but it catches itself at 1500 rpm and does the same in second but only at certain times does anyone have any idea whats going on

 

anyone?

 

Possible igniter coil, try a new dizzy

 

check for codes too

 

You should check for fuel issues, possibly bad pump or fuel filter issue.

 

ok well no codes as as far as the rest ill try fuel pump is only 4 months old an its only wen im driving in first or second

 

sounds kinda like a map sensor problem or an ignition problem to me <TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by z6hatchboy &raquo;</TD></TR><TR><TD CLASS="quote">Possible igniter coil, try a new dizzy</TD></TR></TABLE> this man speaks the truth. break out the old voltmeter, and get the factory voltage table for the map sensor from honda, and check it the old fashioned way.

 

well i checked the spark with a spark tester an its sparking just fine i can try another map sensor but wuddnt any of this throw a code?

 

ok well would this have anything to do with my IACV i just checked my codes again today and now i have a code 14 for IACV any idea?

 

yeah that would make the rpms to jump around. what you could do is take off your iacv and clean it and check the o rings to make sure there still good and see if it helps any just go down to an auto part store and buy carb cleaner and spray it down

 

but it wud make the car shut off an come back like that?

 

......................

 

i dont think it would make it shut off like that but its not gonna hurt any if you do check out you IACV but thats just thinking

 

replaced the iacv no difference still doin it

 

update got some new codes now

p1456 manufacturer control auxiliary emissions controls
p0170 fuel trim malfunction

 

anyone know what this is its driving me nuts

 

Make sure the TPS and MAP sensors arn't broken from shipping the motor.
Once it throws a CEL, check for the codes before you shut the motor off.
The P1456 is EVAP leak, usually the gas cap is lose.

 

gas cap is fine the tps is good i gotta check the map an i cant figure out that fuel trim malfuntion

 

The fuel trim problem is probably a result of your missfire, it's not the actual problem.
Until you get a code, your on a wild goose chaise. You should be looking for a code reguarding CKP, MAP, TPS, CMP, or TDC.

 

well my car dosnt misfire i guess il startby changing the map cuz everything else is new

 

That's an expensive guess. I'd test it first. Hook your volt meter up to the signal wire and slowly create vacuum with your vacuum guage. The voltage should increase slowly as you add vacuum. If there is a voltage spike somewhere, then the sensor is bad. You should be doing this with the key on engine off and the connector connected. This test is best done with a scope, where you can actually watch to voltage increase. Good luck!

 

well i swapped the ecu and now the car dosnt shut off or sputter so im gunna need a new ecu