R34 Gt-T Engine, Tcs And Slip Lights Coming On

[mystery_kid]

as of yesterday driving to work randomly the engine light, tcs and slip lights all came on, wasn't driving fast or hard

when i got to the next set of lights, i turned the car off and then on and the engine light stayed off but the other 2 came back on

so i turned the car off and on again and they stayed off until this afternoon when i started the car at work and it happend a couple of times on the way home

when it happens i always have to turn the car off once and the engine light turns off and then again to get the TCS light and slip light to turn off

this has only happened since i did the plugs and oil on the weekend, i only picked the car up the weekend before and it didn't do that during last week

reading other threads i don't think this is unique to my car but i can't seem to get a straight answer from other threads

[jay-rod]

Mine does the exact same thing.

TCS and Slip still work, but the lights Stay on,

Turn the car on and about 2 minutes into driving they turn on.

My guess was the different sized rims/tyres is affecting the Computer with slip?

[mystery_kid]

i've searched and read through some threads vaguely mentioning coil packs... So i don't know

[R34 4 Door]

Could be many things. mine did the same a while back. replaced my coil packs & it was still doing it.

Mine was dying everytime those lights came on. annoying...

I took it to auto electricians & the codes came up as the afm. it was faulty...

[mystery_kid]

yeah last night i figured out what it was, it did it again and this time it started missing so i'm pretty sure it's coil pack related

[jay-rod]

So could be coil packs or AFM.

My car runs fine mabye a little rough on idle ( not much if hardly at all)

Would the coil packs cause a slightly rough idle?

[mystery_kid]

possibly

mine was definitely a miss drop a dropped cylinder just while cruising, when i put my foot down a bit more it went away

[MrRx7s3]

Hey guys I just got my r34 GTT 2000 model, its got an exhaust, pod filter and BOV, the tcs off light is on and the slip light, constantly, the car doesn't run rough or missfire although a pop here and there randomly doesn't seem as though its backfire just a pop, what could this be? Any help will be greatly appreciated, thanks.

[666DAN]

Just run the diagnostic and see what the ECU tells you

diagnostic.doc

[mystery_kid]

update to this, i finally got around to looking at this on the weekend, just loosened the coil packs off and did them up again and made sure the plugs for the loom were all in properly.

the car has never run better, revs a lot nicer and more responsive no more backfiring which was horrendous after i bought the car and got better after i changed the plugs but now gone completely so something must have not been plugged in properly

that miss still happens sometimes though, so i'm going to changed my plugs to a 0.8mm plug as i changed the plugs to 1.1mm BCP6E, and i've only had this issue since i changed plugs

other than that it must be a coilpack, but it just doesn't feel like a coil pack because it doesn't happen on boost like your typical f**ked coilpack, it usually happens sometimes when i first start the car in the morning or when i'm just cruising at 60km/h and goes away generally if i give it some revs

Edited July 5, 2011 by mystery_kid

[MrRx7s3]

hey guys I did the test and it came up as fault number 17 abs-tcs control unit circuit RB25DET, and in the description it says open throttle body harness? and abs-tcs control unit detects malfunction?, what could that be? what do I need to change? thanks.