4age Keeps Bouncing Off 3 Grand ???

[Kravit]

Well I just took my distributor cap off and there is alot white crap in little holes and pretty dirty inside distributor, could be reason ?

[Teddy]

^^ its not going to be helping the motor..

 

how about you get a short movie of the motor "bouncing" off 3 grand ?

[Kravit]

^^ its not going to be helping the motor..

 

how about you get a short movie of the motor "bouncing" off 3 grand ?

 

 

I did little video, but wont let me upload, basicly revs on 1 and revs up to 3 and keeps bouncing there

[Kravit]

I give up, don't know what to do, maybe leave long enough it will fix itself :hmm:

I know if i ring mobile mechanic prob wont offer much since wont know much about these engines, need 4age pro !!!

[Teddy]

PM Nick about the video - he will fix u up :hmm:

[Kravit]

It really doesnt show much, just shows what i explained, its realy stressin me out now, been off road longer then should be :hmm:

[Kravit]

I tried using 4ac coil with 4age igniter unit, thing on top with the plug, doesnt work,car wont even start with old one anymore, geeez just can't win can i :hmm:

[irokin]

It really doesnt show much, just shows what i explained, its realy stressin me out now, been off road longer then should be :P

 

a picture (or many hundreds of them) is worth a thousand words. Theres so much that could be in the video that you havent explained that these guys recognise.

[Kravit]

I just replaced TPS sensor, still doing it :D

[Jason]

I'm so sure i replied before o well.

 

You will have to find the problem the hard way, trust me, nothing more painfull than a circut bord with 100 more compents and it dosnt do any thing.

 

Start with the most basic thing you can find see if it working if not keep going untin it 'branchs' were 2 or more other things could be causing it ect. Yes its painfull but it works.

[AlexK]

Hi, I 'm new to the scene and wondering if this problem got resolved.

I have put a Blue Top into a Honda S600 and am experiencing the same problem. I reckon it has to do with the TVIS as the car is fine above 3000 RPM. Below this it does a surge whereby you have to try and keep a steady acc pedal or else the rev bounce happens. Going Hillclimbing next weekend as a first try of the car so hope to keep the Revs above 3000 ( shouold be no prob).

 

I have also blocked off the idle valve.

 

cheers

[cuzzo]

I think you may need to sign up to www.twincam.info

 

and post the issues up there.

 

Rev problems can be cause by(from my experiences):

 

Air in the coolant lines. You need to open radiator when cold, turn your heater on heat and on if you wish, and let all the air bubble out while topping up with coolant.

 

Timing issues. Triple Check timing, spark plugs, leads, coil, ignitor, dizzy cap and rotor button.

 

TPS out. Not sure how to fix this but can cause some issues alike this one.

 

If you have a diagnostic plug still wired into the loom you need to bridge two terminals with the ign to reds. Use google to find out how to do this.

 

Could be more things wrong with it but they are the main culprits.

[thomo]

sounds like your computer is base mapping, try disconecting the battery for 5 min, hook it back up fully charged, let the car idle for a bit and see if it clears up

 

(base mapping means safty mode, for when you break something but toyota want you to be able to get to a garage not keep driving around)

[Kebin[RL]]

check the earth on the intake manifold... if its not secured properly it can cause that sort of problem as well

[AlexK]

Problem solved - Blocked off Throttle body vacuum pts. 2 had connectors on and were blocked but other 2 were minus connector. I assumed ( wrongly) that these were never connected. This is what happens when buying an engine that is not in a running car.

 

Appears many of these probems relate to vacuum leaks. Finding the leak is the difficult task though.

 

Once I get organised I'll put on photos ( in the correct Forum).

 

thanks again .