vlc92189

hey guys.. i just replaced my bottom block with another bottom block on my JDM B16 in my 98 civic. car ran good before i had a serious serious rod knock so i just replaced the block. it is a OBD1 motor into a OBD2 car.

now my problem s

We just got it to start (had plugs all mixed up) but now it idles so rough the whole engine shakes.. and the motor mounts are good. any suggestions?

thanks guys, and girls.

Shawn C

iTrader: (1)

you sure the mechanical timing is right (cams/crank lined up?) and you SURE the wires are in the right spots now?

My JDM EJ8

check timing, plugs, check if your getting a good spark on all cylinders.

vlc92189

no, im not exactly sure as im in another state right now and my uncle is working on it (mechanic at mercedes). but he wont be able to take a look for another week.

i have cams and adj cam gears, does this matter?

vlc92189

anyone?

joelmatt89

do you have any cels, are the spark plugs good, what is it idling at ie. rpm

vlc92189

i do have CEL's ill check when i get home. how can i check with a OBD1 motor in a OBD2 car?

EK9r!der

same way you check them in all cars... use a paper clip or speaker wire and use the plug by your ecu.

94_DC

Yeah if you make sure all your timing is correct and you don't have a CEL, it could just be gunk in your engine, so try to keep it running.

This happened to my friend. BUT make sure everything is correct or you could seriously hurt your motor.

vlc92189

ok im going to see very soon. i hope it is nothing serious though.

vlc92189

well i have 2 bad fuel injectors which is making my engine backfire while idling. i have a obd1 jdm b16 in a obd2 car. does trhis matter?

anyone know what kind of injectors to get? thankss.

MrRabbit87

iTrader: (1)

how are you sure the injectors are bad? I had similar problems when i did my swap. Found out i had the wrong spark wires going to the cylinders. correctedd it and ran liek a champ.

dumafit

how did your injectors go bad when you said the car ran fine before, but all you did was swap a shortblock, you should be using the same injectors still

and if your car had a crank sensor before and now that it's an obd1 block, it wont have it, you might want to check that

check timing
check spark order
check for wrong plugs on the intake manifold

joelmatt89

if your injectors are obd2 then you need a resistor box for the obd1 ecu to work right or you will fry your ecu. OBDII injectors have 2-3 ohms of resistance between the two prongs

freshvibes

What codes did you come up with? I just finished my swap and my map sensor wasn't hooked up correctly which caused a rough idle. Make sure your vacuum lines are all hooked up.

vlc92189

my unclei s a mechanic at mercedes and said i had two bad fuel injectors. i believed this was a problem before the car stopped running htough. and with the crank sensor we swapped it as well. ill check the map sensor on tuesday and how many vacuum lines are there?

vlc92189

what do you mean wrong plus on intake manifold? its a Skunk2 Pro series intake manifold. i havent been working on it, so ill check evrtything when i get back ( im at college right now )