Rb25De Engine Light

[skyline25gt]

hey guys.

my engine light came on, so i took it to the mechanic and he tested the ecu. he said it came up with faults regard the coil circuit. i just wanted to know what that meant so that i can fix my car straight away. my mechanic didnt tell me anything else part from that. not even the error code.

thanks

[Grey]

error code 21 will most likely be coil packs, double check that with the mechanic to see if it was the coils, also coils take about 2 hours to change with the parts so you should be good to go in about 1 day. if you have a non turbo like me, you might want to get 1 2nd hand coil pack replaced instead of 6 new iridium ones as that would cost u 600+ instead of about 200 bucks.

[skyline25gt]

i've just rang him and got no reply!!! i just wanted to know what other things would be affected in the coil curcuit for the engine to come on. and yes its a non turbo. if it is the coil packs i was thinking of getting the yellow jackets coil packs? (anyone know if they are good)

cheers

[skyline25gt]

i meant the *engine light to come on*

[Grey]

could be o2 sensor crank angle sensor or spark plugs, most likely coil packs

[skyline25gt]

thanks alot for that. yea i reckon its more likey to be the coil packs.

btw where can i get good 2nd hand ones?

[R34 4 Door]

yellow jacket's are okay. i have them on my 34 GT-T.

[skyline25gt]

how'd you know that you had to change them? the error code? plus where'd u buy them from?

any increase in performance?

[GreyFox]

could be o2 sensor crank angle sensor or spark plugs, most likely coil packs

Would a faulty o2 sensor cause the engine light to come on?

i took mine (RB25DET NEO) to a mechanic and got the same code result,

He got the same code reply and changed a coil pack he thought was faulty and all the spark plugs.

i still get the problem, the car runs noticeably rougher when the light comes on but usually i can turn the car off and on

again and the light stays off.

The light can go a week or more without coming on and usually tends to come on when i take it easy and drive economically.

Thanks in advance

[mad082]

o2 sensor won't make the engine light come on as far as i know. if it's running rough then it will almost certainly be the coils, as a dodgy o2 sensor won't do that.

[Grey]

took apart everything covering the coilpack + spark plugs today ordered 6 yellow jackets and 6 iridium sparkies, should replace them and get rid of the damn light!

[mad082]

personally i wouldn't have bothered with iridiums and just gone with copper plugs, but that's just me, since in the long term (and short term come to think of it) coppers work out cheaper.