Skyline Sounds Like A Wrx

[MyR33GTS-T]

Hey Guys.

Was working on my R33 GTS-T Series 2. Put in new plugs. and now the car has never run the same.

I replace the plugs as the car was unstabe under heavy throttle loads.

I put it back together and its running like a WRX.

After this tho....

I bought new CoilPacks, and new plugs again... and gapped them. and changed the fuel filter.

AND it is still running like a shitbucket wrx. tested crank angle sensor and engin compression ratio, and also fuel pressure.

Any Help.

Next step is to have a look at the injectors.

Any suggestions before i take my car to bits?????

Cheers,

Michael

[whistle]

If it sounds like a WRX, my guess is that your not running on 6 cylinders. Did you plug the coil wires back into the correct cylinders?

[WrenchesInTheGears]

that would be my guess also,

test each lead coipack for spark and each plug.

[MyR33GTS-T]

yeah will do..

My mechanic mate has put more plugs in and tested them... but will get him to do it again.

So not fuel related.????

Even though it is running lean?

Keep coming with the suggestions

[Super_Dude]

It's probably an ignition issue. Try swapping an ignitor with a buddy and see if that works. Also, what are you gaping the plugs to and what kind of coils are you running? Pull the cover off an pull the coil plugs off one at a time. the one that doesn't just about kill the motor and sounds the same is your problem cylinder.

Your car probably isn't actually running lean. If you don't have spark in one cylinder then air and fuel is just passing threw causing the wideband to read lean.

Hope that helps.

[mad082]

if it simply happened after changing plugs then it can only be an ignition problem.

what sort of plugs did you use? and what coils? were the coils the correct ones for a series 2?

[nobby]

yeah will do..

My mechanic mate has put more plugs in and tested them... but will get him to do it again.

So not fuel related.????

Even though it is running lean?

Keep coming with the suggestions

I have had new plugs that where stuffed straight out of the box, quite a few times over the years, but

Try testing the wiring loom for the coils, the loom for these that runs to coils is fairly straight foward to remove from car. I'd bet the loom has poor conections inside it and since you moved this to fit new plugs etc, its proberly upset the ageing factory wiring.

(note) it may test ok, have a look inside loom, I recently did on my gtr and found a real problem as there is a number of wire crimps, which I soldered and my car its now even more of a joy to drive than ever before. If you don't realy know how to solder best to get someone who knows what their doing as these wires are a bit thick at crimped area.

TIP don't just wrap in electrical tape use self alamagating tape, far better sealing properties but expensive. Jaycar have it.

Hope this helps.

[_Ryan_]

coil pack plugs mixed up. 4th and 5th?