i just installed my injen intake for me 1993 ls400 and when is on idle is jumps up and down alot. I reset the ecu and everything and it still jumps up and down. Does anyone else have an injen intake or knows any tips to fix this problem?

 

sounds like u either didnt connect the MAF properly or messed it up.

 

the MAF is connected. can anyone point me out to the lexkost and jbrady mods. ive been searching all over the forums for it but cant find them. stupid injen intake sucks

 

lexkost - http://sr1.clublexus.com/forums/show...lexkost+intake
jbrady - https://www.clublexus.com/forums/sho...threadid=55111

 

It's not the Injen intake. I would find out what the problem is before I start doing the other intake mods. While the Injen may not gain much HP at all, it surely doesn't make your car run they way you describe. I ran the Injen intake on my 93 SC400 which is virtually identical to your 1UZ-FE engine in the LS with no problems.

 

dude, your car is doing what mine did for a little while until it went all bizarro on me. Check that MAF sensor. Just cause its connected doens't mean it's working right...have you got a check engine light yet?

 

there nothing wrong with my car. it idled fine before i put the injen intake on. not with the injen intake it idles all crazy when the car is warmed up.

 

Yo. I know where you got the intake...i used to be part owner.

Check your MAF. Something is wrong. Also check all your hoses. Mine is fine, no problems at all.

Chris

 

Have you confirmed that your car still idles perfectly without the Injen by swapping the stock intake back in? There are so many people using Injen Intakes on LS and SC that it can't be the product. Either that or all those people are just lucky.

 

Man, I have similar problems but I have a 2001 GS300 with an injen intake its now going through it 3rd mass airflow sensor anybody knows what cause this? It works fine till like a month or so and goes out. Check lights comes on and the VSC lights on too. I'm a little confuse

 

maybe ur injen filter has too much oil on it

 

So wat you are saying if the air flow sensor catches oil and probably dirt cause this? Anybody can chime in?

 

the MAF wire (inside the tube) is VERY sensitive to contaminants and oil has been known to knock them out pretty quick. most cases ive seen stem from K&N/injen/other oiled air filters being over-oiled by owners and then not properly dried.