What do you mean by that?
Isn't it if the timing is off, then the car would do that all the time? (just trying to think logically)
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When I got my new distributor fitted, I took my car to the mech to get the timing set properly (just quickly fitted it at home to get the car driveable again), and he said mine was slightly retarded, and he advanced it back to normal, didn't seem to affect or improve the surging. Mines come back with a vengeance today.
Ok been driving around and testing a few things and here's what i've come up with.
1. From stop. Medium accel pedal (approx 30-40%) and shifting under 3k rpm on each gear
The surge hasnt occured on me (yet maybe) when i drive like this.
2. From stop. medium accel pedal (approx 30-40%) but shifting at around 4-5k rpm on each gear
The surge occurs very minimal occasions whilst cruising but does occur from time to time.
3. From stop. Light accel (say 10%) and shifting under 3k rpm.
Surges/hesitations occur quite often when cruising.
4. From stop. Light accel, shifting at around 4-5k rpm
Same as above.
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Seems like when the car is stopped and accelerated with a decent amount of load on the engine, it doesn't hesitate when cruising???
Can anyone shed some light on this?
As Limbo has said, you have to adjust your timing, take a photo of your dizzy (facing your engine, from the left side) take a photo from birds eye view and from side view.
I said to calibrate the voltage on the tps,you said -
How do you know,what have you got to lose by doing it,so why don`t you do it instead of asking the same questions?
I had the same friggin` problem for almost 2 years and this is what fixed it!
DO IT!
and check the timing is set correctly too.
Links are on the 1st page.
I`m not saying this is the answer,but how will you know if you dont do it? because someone said `that wont be your problem`? DO IT already! :)
Also:
* Squirt a can of suburu upper engine cleaner through the engine
* clean the carbon off the 4 spark contact points in the dizzy and the edge of the rotor
* Clean spark plugs and set the gap correctly
All of that will cost you sweet FA.
and lets go from there aye?
If no luck then I would change the fuel filter,$50,it can be the cause of strange problems and the 02 sensor $100.Also plugs and leads $80.
Like I said I had the same deal for 2 yrs,damn near drove me nuts.Your car will only benefit from a new fuel filter and 02 sensor anyways,it`s just that it costs money,which is best avoided right?
Best of luck,keep us posted.
Most on here will say the same,truth is the tps goes out of calibration and the performance of your car suffers.When the tps is calibrated,the car WILL perform better but if the timing is off then that will be the problem.Suburu upper engine cleaner will help the car to run smoothly aswell as it removes all the carbon and oil deposits from around the valves and everywhere else,it is an awesome product.I only use that to clean engine parts now,carby cleaner is crap compared to Suburu UEC.
Sorry if I jumped a little before..
I will have a look into the TPS, I'm not mechanically confident in being able to do it myself. I had my distributor replaced a while back when mine melted, and had the timing checked by the mechanic, so I'm not sure if he did it wrong or what.
My surging always seems to happen when I'm say cruising along at around 60 at like 2700rpm, and then the limit changes to 70, so I lightly press the accelerator to get up to the limit, and the revs will drop from 2700 down to like 1000 or less. I also notice it a lot when I go through round abouts, and begin to accelerate after I pass through it.
I know EXACTLY what you mean ashwee.It does sound like the timing.You can buy a timing light from repco for $60 and check it,it`s real easy aye,I did a DIY on here.
Also,I just remembered something I forgot to mention that I found on my car that may have been a cause of my problem.I`m not sure if it was or not and it would be good to hear from someone if it may have been.
If you put the front of the car on jackstands and get under there and have a look next to the front left wheel,you will see the power steering belt that connects to an alternator looking thing LOL but there is a long bolt that goes right through the bottom of it with a nut on the other end holding it on.The nut had come off mine and the bolt was just 90% out and just hanging on there,this caused the alternator thingy to be on a slight angle and it ate away one side of the power steering belt.
So,just whack the bolt back in with a hammer and replace the nut if this is the case.It freaked me out when I found it,I was damn! how long was it like that and I`m lucky no real damage was done!
Again,I dont think it was the cause of my problem but well worth checking anyways.
Can someone shed some light on this matter,cheers.
Unfortunately ashwee,the tps calibration it seems,no one knows much about it,so it`s the type of thing that you cant go somewhere and have someone do it for you.But it would be best then to do the above first then go from there.
I`ll get a pic up of what I`m talking about in a few days.