2JZ Tuesday - Bosch LSU 4.9 and LSU 4.2 differences

[@unknownperson5089]

Thank you Michael! Happy drifting!

[@PedroTLimaOficial]

Tks for the video it help me make my decisio for the 4.9 over the 4.2

[@cheapkailaujing]

U r most welcome

[@BjornFSE]

Thanks for the Video, Awesome information

[@robair67]

Really good info, thanks.

[@ham003latechedu]

Ive been splicing a 4.2 to my aem 4.9 unit for years.

[@stevewyatt9693]

Helpful. My car has a IM MTX-L gauge and I bought a new MTX-L with 4.9, have to replace the harness as the connectors are also different!

[@cheapkailaujing]

Pins are different too.. Careful of the wiring

[@futhr885]

Hello, the 6 pins of the 4.9 what are for? On datasheet i saw 2 pins for voltage 7,5v, other 2 pins for voltage 10.8 V to 16.5 V (ten TO sixteen, what does it means? Like you want between these 2 limits?), and then the last 2 should be the output signal of the O2? A little bit confusing. Can be tested by manually input each voltage in it and then measure it? imfsoft.com/files/Lambda_Sensor_LSU_49_Datasheet_51_en_2779147659pdf.pdf

[@cheapkailaujing]

Hmm I guess u got the wrong diagram.. Have to find one generic diagram for lsu 4.9

[@89engineering]

the 4.9 sensor have 4pins or 5pins cables?

[@ngt84]

LSU 4.9 breaks down more often in aftermarket installations

[@cheapkailaujing]

Hmm not really, 4.9 is much better than lsu4.2.. 4.2 always out of calibration

[@ngt84]

@@cheapkailaujingpersonal experience combined with EFI tuning groups tell otherwise...

[@ngt84]

@@cheapkailaujing Speak of the devil. Another sensor LSU 4.9 in a subaru. just broke down i have a screenshot of the logs if you like to see... 100$ down the drain.

[@cheapkailaujing]

@@ngt84 oh dear.. Do u have a garage or something that customers always send their cars to u.. Or ur cars all have lsu4. 9? Gotta install correctly too to prevent it from breaking down easily

[@ngt84]

@@cheapkailaujing i have clients with tuned cars. They all forcefully went to 4,9 because most new gauges come with it

[@goneburger2731]

hi greetings from new Zealand... is there any difference between a automatic supra twin turbo 2jzgte engine and a 2jzgte engine from a Toyota aristo gs300 from a or are they both the saim engines

[@cheapkailaujing]

yeah same engine! =D

[@mitchellhayman381]

I thought that the Aristo has vvti where the supra doesn't

[@slicktop2jz855]

@@mitchellhayman381 late supras have vvti

[@shawnroxby5629]

I had to get a 4.2 because I am using the ecumasters classic and that’s all it allows 🥴

[@cheapkailaujing]

It's all good :)

[@shawnroxby5629]

@@cheapkailaujing Great VID!

[@FxRR88]

They are have a diffrent soket betwen 4,2 and 4,9 (same shape but difrent size)?

[@cheapkailaujing]

yeap different socket and different wiring too

[@RetreatHacker]

thanks

[@jasonbirch1182]

Is the plug the same?

[@cheapkailaujing]

No they are not the same

[@daltonscofield22]

I have an AEM AFR gauge in my car, can I update from the 4.2 to 4.9 without changing gauges?

[@cheapkailaujing]

Hmm sorry I don't think so. Even wiring is different

[@daltonscofield22]

Thanks for the answer, not what I wanted to hear unfortunately, now to find someone to trade me a 4.2 sensor for my 4.9

[@ham003latechedu]

I bought a 4.9 aem unit, but my parts store only stock , 4.2 I been splicing a 4.2 for years.

[@Keyno77]

I believe you can you just connect the program and adjust settings at least thats how it it with innovate mtx-l but the cable harness is different.

[@the063one]

​@@ham003latechedudoes it mean i can use 4.9 to to my 4 2 senor?

[@lastick56]

What is "pump current"? :)

[@stephensomersify]

"Current Pump" in Chinese

[@FroztiProductions]

Idk the 4.9s seem cheaper now

[@stephensomersify]

use a mic closer to your mouth - I gave up listening after 4 secs -

[@cheapkailaujing]

Oh dear I'm sorry. I'll use a mic.

[@luedey7704]

​@@cheapkailaujing i can hear you just fine

[@jacobwebb8818]

​@cheapkailaujing zero problems hearing you here. I'm sitting on the couch listening with my phone speakers. One of the worst case scenarios and I hear you just fine lol

[@ImpostorModanica]

Great video! Thank you very much!