About JDM Toyota 4A-GE
About JDM Toyota 4A-GE
Blog Article
The good news is you've got a BGB even though. You'll find large sections dedicated to diagnostics and troubleshooting. That is wherever I'd personally begin. It'll manual you better than pretty much everyone can. For your rich AFRs you will need to be searching across the circuits of the O2 sensor, MAP sensor and coolant temp sensors.
Thank you greatly, i apologize for not clarifying the mods. I will reset the TB linkage considering that i havent altered it immediately after i place it back again on. I used to be examining the throttle prevent to ensure it donest hold the plates crack open up, the very little bolt doesnt touch the piston below it when idling, and also the vacuum line is hooked accurately. I have already been seeking vacuum leak with no benefits for while, it definitely frustrates me lots. I wish There's a vacuum leak somewhere, so the problem gets to be clearer.
due to the fact I have a bigport I loaded during the spaces to seal the ingestion flange. Just implies I have a phase on The within.
This engine was the first within the collection to use Toyota's twin camshaft technique often known as Significant-Mecha Twin Cam, wherever the timing belt drives the exhaust camshaft along with the exhaust camshaft then drives the inlet camshaft via scissor gears.[eighteen][19][20] The inlet camshaft functions being a slave camshaft to your exhaust camshaft (the latter acting as a learn camshaft for your engine), which led towards the system remaining unofficially known as the "slave-cam procedure".
one. If you say the throttle system entirely closed, does that mean if i put my carburetor balancer on Every single throttle at idle, i should really get a "0kg/h" reading for every throttle?
– The easiest way to check out when there is a difficulty is to easily generate with and without having it becoming disabled. Merely unclip the plug in the VVT solenoid and carry out a check travel.
If it's usually finished this then it may be a nasty tune. If it started out carrying out this Then you definitely want to figure out what has improved.
All ECU’s use many sensors to ascertain load. Nevertheless the method used varies in between engines since the Silvertop uses an easy Vane form airflow meter although the Blacktop takes advantage of a far more advanced vacuum (MAP) and throttle place (TPS) for more substantial throttle openings the place there isn't a vacuum.
A bit of hose in your ear, holding it at the very same place for each one's 'hiss' for comparison - Appears equal, They're equal.
i don't forget taking an image of a lift gauge i hooked up to the vacuum block, I am going to find out if i can find it as i cannot don't forget what it examine, And that i also throew a mates vast band logger on there to examine AFR's and MAP. i have a handful of monitor shots of section throttle, and WOT.
.. it had been Pretty much just a little carbyish after you very first started off if it absolutely was parked outside the house over a 2 deg early morning.. cranked hearth and give it a few modest revs on the throttle - then it might idle at 800.. when warm it will drop by around 900. (thats how i established mine at the least)
Most get the T3 adapter and do the nominal basics. I have absent about mine inside of a stupidly differant way. Going overboard and using ages to get it done.
wow. to show my stage a guy from Manila opened up his ST and run MAP BT ECU eliminated the AFM and dynoed the car, the only distinction is the power blacktop 4age for sale band is somewhat distinct but no improvement on how agressive the map is. also his fuel mileage sucked, so he went again to his First/first set-up.
... the 4 sets of cam lobes are set at 90 deg apart. Very often the engine will stop with two sets of valves partly open up, but it can be done for it to stop with just one established fully open up plus the Other folks shut.