chineseflyrice

I swapped a b18b into my 97 ek, and using a virgin p28 ecu. When I fire it up, My idle keeps jumping from 1.5rpm to 3.5k rpm and back for 5 mins, and then after it tries to maintain itself, it idles at 2k rpm. The weird part is when I take off the map sensor, it idles perfectly normal and it doesn't jump that high when I fire it up in the morning (It's summer now over here in PA). I can't figure out what is going on here... So far, 4 days after the swap, i've been driving without the map sensor and believe me, it sucks to let the car behind inhale all that burning oil. And I just added another 2 quarts of oil because it burns so much. I've done the CFK mod even though I'm using an OBD I ecu... Have anyone else experience this problem? Yes, I did try to adjust the throttle cable and FITV, still no improvement...

everlasting1832

trying bleeding the antifreeze from the nipple located by the radiator hose. then clean the iacv valve.

chineseflyrice

I don't understand how that will help... Because without the map sensor, it idles perfectly fine at 1k rpm..but i'll give it a try... yea I cleaned the IACV valve already

pdiggitydogg

1) why are you using a p28?
2) bleed the coolant, as suggested
3) look for a vacuum leak - start with dumb stuff like a hose not connected
4) your engine shouldnt burn anywhere near that much oil.....something is seriously wrong:
Check the compression - dry and wet

everlasting1832

if theres any air in the coolant system, then it will make your car idle all crazy.

chineseflyrice

ok, I rebled the coolant system and then when I fired it up, I got a check engine light with a OBD II code of 1300 (Ignition Misfire) It kept jumping up and down from 1k rpm to 1.5 rpm, So I thought it was a bad distributer. I replaced it and now the car does not even start at all. The engine rotates, but it just does not want to ignite and start up. I tried replacing the spark plugs, wire, and distributer, still no good. I checked on the Haynes repair manual and the plugs are in the right order in the distributor.. This motor swap is driving me insane!!!

Cboi

y r u using a p28 on a ls?

chineseflyrice

cause of the check engine light from the second o2 sensor... These signs are from the p75 ecu too...