Everything about JDM Toyota 4A-GE
Everything about JDM Toyota 4A-GE
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Re: ITB Conversion on 16 valve 4AGE On my inventory bigport AW11 a leaking exhaust manifold gasket brought on the O2 sensor to browse lean and it pumped gasoline in the motor. Gas overall economy plummeted till I sorted it out.
4a. I might say that it is probably wealthy at idle because the more air leaking thru the throttles is dropping the manifold vacuum and also the ECU is introducing excess fuel. I found that when I acquired my throttles modified correctly, my ISCV needed to open A number of far more clicks.
Regardless that the Blacktop head contains a a lot more open up combustion chamber (see “Head combustion- chambers”) it nevertheless has a higher static compression ratio (see “compression ratio”), this is solely due to piston design and style. The Silvertop piston encompasses a really compact dome with two deeply angled exhaust flycuts, two reasonable internal flycuts and a moderate flat middle flycut for the middle consumption valve. The Blacktop piston is very distinct, to support for the greater chamber the dome is substantially higher with diminished flycuts. The exhaust flycuts remain current but much more shallow and only the middle ingestion flycuts continues to be but even that is merely a very small flat round dish machined out.
Even so the car however operate wealthy with the new one particular on, then i simply just tested the MAP sensor by using a voltmeter, it reveals in regular selection. With the coolant temperature sensor, i havent checked that just before because it is concealed deeply again into the firewall, tough to achieve. But my h2o temperature gauge reveals regular readings, so need to i believe the Coolant Temp Sensor is ok?
4AGE 20v ITB vacuum Guidelines on Intecracing.com The vacuum hoses would be the two U formed hoses, They are really connected into each other. This established-up may not depend on MAP, open up to correction
Slightly throttle to 50 percent throttle isn't any challenge and is not going to give vibrations btw. I am doing 28 mpg max now with quick driving and from time to time reving to max 7k, but only from time to time!
If it's constantly performed this then it may just be a foul tune. If it started accomplishing this Then you certainly have to here have to determine what has improved.
All ECU’s use numerous sensors to find out load. Nevertheless the strategy used differs concerning engines since the Silvertop uses an easy Vane style airflow meter whilst the Blacktop employs a far more complicated vacuum (MAP) and throttle situation (TPS) for larger throttle openings in which there is no vacuum.
Though I haven't got a 20V, I did really need to go thru this treatment when creating ITB's on my DIY ingestion manifold. It proved being almost unattainable to do it While using the consumption installed over the engine, so I pulled the manifold out and setup the ITB's around the bench.
The last segment FI-33 is during the BT BGB and can give strategies for inspecting the 20v particular electronics.
What kind of tuning would I be considering with this? Would E-take care of perform or wouldn't it be better to choose some thing like MS?
Quote Postby billda » Thu Sep 11, 2014 12:27 pm Thank you Jondee86!! The car came with all four throttle by-move screws screwed many of the way in, i utilized a carburetor balancer to view if Each individual cylinder was sucking the identical volume of air, but While using the 4 by-go screws all the way in, the No.
Add to quote Only present this consumer #25 · Dec 4, 2007 You do must repin the ecu connectors, and There are many other modifications that you've got to help make. If you're running the Silvertop AT ecu, the ecu pinouts are Nearly identical.
The good news is you've got a BGB however. There are actually giant sections devoted to diagnostics and troubleshooting. That is where by I would begin. It will eventually manual you better than almost any person can. For your wealthy AFRs you should be looking across the circuits from the O2 sensor, MAP sensor and coolant temp sensors.