R33 GTS-T Skyline

[Baby Zilla]

Hi Guys,

I was hoping you could give me some advice regarding my 1993 Nissan Skyline R33 GTS-T.

The problem I am having is quite difficult to explain. I'll be driving along normally with the throttle open and then all of a sudden the revs will drop and the engine will cut out. It's like the throttle just cuts out. I can have my foot flat to the floor and the revs just drop and the engine cuts out.

But, if I then turn the ignition off and restart the car, it will continue on driving normally until of course, it happens again!

This happens every trip I make in the car without fail. It generally happens after I go over a large bump, or when I change gears. It has also ocurred twice when I have activated my windscreen washers. It also tends to happen more often when the car is cold, or has been driven hard for the first time in the course of the trip.

It also has a tendency to happen when the car is at idle-albeit less frequently.

The car also has a tendency to hit flat spots and hesitate at high revs (above 4000).

I have had the car dyno-tuned twice and the plugs replaced in an attempt to solve the problem. The car also has a new clutch. But, the problem began to occur before the clutch was replaced. Other mods on the car include a turbo-timer, short shift gearbox and sports exhaust.

It has been suggested to me that it could either be an airflow problem, or, a problem with the ignition regulator/modulator, but, the mechanic I have been taking the car to has so far been unable to fix the problem. Obviously I am not too happy with this and was also hoping you could recommend a reputable mechanic/workshop in Melbourne that specialises in or at least has a great deal of experience with R33 Skylines.

From my limited knowledge of cars, I feel it is probably an electrical fault or fuel injection problem, but, I really don't know. This problem is very frustrating and also very embarrassing when it happens in the middle of an intersection-not to mention dangerous.

Any advice you could offer me on this issue would be greatly appreciated.

[hawks]

dude, does just the motor cut out, or everything? ie. tacho, radio lights etc? if its everything, it might be a bad earth that is coming loose.........

[b2barker]

Yep sound like a loose wire or dodgy sensor. Try ECU diagnostics

[DanielGTST]

I had a similar problem a while ago, but not so severe. In the end it turned out to be the TPS (Throttle Position Sensor), it made the car do some funny things while driving and idling, we just took it off cleaned it and reconnected it, it fixed up the problem!!

Daniel

[OOHSAM]

We had the same prob (TPS - Throttle Position Switch) with one of our ZX's, I was told that this only hapens in Auto Cars.

[OOHSAM]

Baby Zilla - 2 Things

1. Add your Location in your profile (We know you're in Melbourne Now!! LOL!)

2. I know a couple of places that will be able to fix your prob without ripping you off. Theres 3 Places I know of in Dandenong

and one near Knox area.

Let me know if I can be of service to you.

Sam

[Baby Zilla]

Yeah cool thanks! I'm in Oakleigh, and have been told a few different places to go to, but, have then heard horror stories from other people about them, so, I really don't know where to take it!

[Baby Zilla]

Ohh, and it's only the engine that cuts out-not everything! And I've also noticed that when I get out of the car(with the turbo timer still running) if I slam the door-the engine cuts out too!

[b2barker]

Check the connections of the turbo timer. Might have been badly wired in.

[rs73]

Originally posted by OOHSAM

We had the same prob (TPS - Throttle Position Switch) with one of our ZX's, I was told that this only hapens in Auto Cars.

I dont think it have to do with gearbox... if something wrong with some sensor I think it would stuff up ur car no matter what gearbox you have.... n lucky my '93 R33 auto has been driving beautifully so far... zero mechanical problems....

[Baby Zilla]

Yeah, I reset the ECU yesterday and turned off the Turbo Timer and I haven't had the problem since. But, I'll give it another week before I pass judgement. Then I'll turn the timer back on and see what happens. Thanks for your help guys!

[ex-static]

Try Ice Performance in Cheltnham.. they should be able to help you out