Why Is My Rb Spittin? :(

[fourdoorlove]

Hi guys

ive had a search around the forum but i cant really find the answer to my problems

my second cylinder aint firing on my rb20det i know this bcoz when i go along and unplug each coilpack, the second one is the only one which doesnt change the cars idling rate

so i started by swappin all my plugs around, and shes still missin on that 2nd cylinder

swapped coilpacks over, still missin

now the only other thing im guessing is whether the injector on that cylinder may be blocked, so i ran some injector cleaner through my car, didnt work

tired another brand of injector cleaner, didnt work

so im hoping its that injector which is fluffed, my question IS - what else could it be if its not the injector?

also, if im to swap to different injectors, which ones are the best to go with?

im kinda leaning towards gtr's with a resistor pack, but i dunno whether more cc's are better or high and low impedence is better

i am lost, sorry moderators if there is a thread similar, i wasnt able to find one

im hoping im not up for big dollars to fix something internal... >_>

Edited July 16, 2009 by fourdoorlove

[gotRICE?]

I'd try another coil loom?

[Muff]

ditto.

i had the same problem , turned out to be the loom plug that goes onto the coil....\

look around for any cracks.....take it apart and rewire it if u have too...

shouldnt be anything sinister...

GL

[fourdoorlove]

replaced the whole loom with another one in better condition, still nothing

help!

[jase-r34]

Do you have power at the injector plug? I think it's called a noid light.... plugs onto the injector plug (take it off the injector first) and the light pulses with injector operation....kinda crappy explanation, but yeah....

[Muff]

Take your plug out of the cylinder, start the car, see if it sparks......

if it sparks u know its not ur loom , coil , plug.

put a test light to ur injector plug, start car if the light comes on when the injector fires its good.

(ps dont take ur injector plug off ur injector. just push the test light into the back of the plug.)

the only other thing i can think off is that the fpr is f**ked , its running too low a fuel pressure... and ur high idle is from a lean mixture....

can you adjust ur idle on ur aac?????

check ur fuel pressure, maybe try another reg.

Maybe a big air leak some where????

GL

[fourdoorlove]

ill try the test light theory..

ive just installed a new fpr and its running at around 70-75psi

it was still doing the same thing on the standard fpr, so i dnt think its that

a mechanic friend of mine said its most likely the injector that is not working or is blocked, but ive ran two diff types of injector cleaner through it and still no result

[fourdoorlove]

so like run it with the plug in the cylinder but have the coil pack out to see if there is a spark?

is that dangerous? lol

[Muff]

if u think its the injector just swap it with another cylinder....

pull cyl 2 and 3 and put 2 into 3 and vice versa... that will tell u if the injector is f*ked

i pulled the coil and plug out and ran an earth wire to the body from the plug and pluged everthing together.....

turn it ova while some1 whatches the spark... if it sparks.. its all good... if it doesnt ,,,, well thats that....

GL