Check all your inter-cooler piping joins as well then. I know on Nissans when they fail they cause the idle to hunt like yours. Re-connect your sensors to your new throttle body and then install the aftermarket throttle body for power gains. The problem has been consistent over the past two weeks - the car runs fine when cold, and once it heats up, it starts with the hesitation and the accelrator pedal problems. When modifying an engine, however, the standard Lexus Is throttle body can sometimes reach a point where it is no longer large enough in diameter to supply a sufficient enough amount of air.
Q: How do you install a throttle body? I changed the O2 sensor as I wire had come loose, but that did not fix the problem. Q: What is a throttle body? Also, are these easily fitted? I looked once before and everything looked good. However I am still experiencing that quirk during acceleration, specially when turning it hesitates to go and unless a step on in harder it won't react. There is a throttle cable fitted as standard but only as a back up. That's a very good point and thank you bring it up. I know on Nissans when they fail they cause the idle to hunt like yours.
Also, if it were a loose hose, wouldn't the problem be a little more consistent? A: Air travels through your intake piping through your throttle body and into the intake manifold. It's pretty uncommon for them to fail on Altezza's but anythings possible. . Why buy a throttle body? An aftermarket Lexus Is throttle body can remedy this through its larger-than-stock bore, eliminating the stock unit's bottleneck effect. In either case, a larger throttle body is a great addition to a turbo kit or even a heavy-breathing naturally aspirated setup.
I have to push the pedal all the way to the floorborad in order for the car to move. When I called the dealer and described my issue, he wanted me to go in for a diagnostic. Most cars have a separate sender for the gauge as well. Q: What is a throttle body? In some cases, it's a good idea to match the intake manifold bore to the throttle body, and if you're using your factory manifold you may need to purchase or fabricate a throttle body adapter for ease of installation. It has the same bolt pattern as a Q45 throttle body, so it will not fit a stock Toyota intake manifold without modification to the flange.
The throttle body, which includes a throttle plate that opens and closes as you press and release the throttle, can be a major bottleneck to air flow on some trucks. Yours is turbo isn't it? A larger throttle body allows more air to pass through, thus creating more power. The more air and fuel your Lexus Is engine can inhale within a proper ratio, of course , the better the performance you can expect. A: Throttle bodies are easily removed by taking off the factory bolts holding it in place along with all the sensors. Basically, everytime I turn the car off and back on, it will drive fine for a few minutes, sometimes even the whole trip, but then just like that the engine will bog down and I have to depress the accelerator all the way down in order for the car to move. The check engine and trac lights are also on; the code i get for the check engine light is P1120. I know a camcon is less than that.
I'll work on those items and post the results. Water temp is fine im sure its a throttle problem, even when i press the peddle and let up there is a noise that sounds like air escaping, Problem is there arent tezza experts in dublin most mechanics aint seeing a tezza!! Please let me know, Thanks mine was doing the same when i bought it. Were you able to get this issue resolved or fixed at all? This throttle body is a direct fit for our Greddy type 2jz-gte intake manifold! At a guess it would be an electronic mod. At Andy's Auto Sport, we have a huge variety of Lexus Is throttle bodies to ensure that you have every throttle body option available to you. The picture shows the flange that can be unbolted then welded to your intake plenum. If you want more power, buying a performance throttle body is a great way to go.
For this reason the throttle control motor must stay connected so this mod that Dave says exists would have to be electronic. I give it some throttle and it hesitates for a second, then decides to go. The throttle body is usually located between the air filter box and the intake manifold, and usually attached to, or near, the mass airflow sensor. Then after about 25-30 mins, the engine noticably bogs down, and when I push down the accelerator, the cars does not react. Looking to see if anyone here has dealt with this issue and if the reflash only will sort it out. Don't muck around with nasty 2nd hand parts.
I'll check that out and see hopefully that works. First thing in the morning when I start the car, it drives great and normal. Thanks again for your input! Infact nearly impossible to drive. Seems a cheapish mod to do. A large-bore Lexus Is throttle body will help solve half of the equation by allowing much more air into your engine.