4sythe

I am not sure if this has been before, but i previously had some problems with my is250 injectors
being damaged and needed a replacement asap. With the only quick solution being to put in 4 is350 injectors and leave the 2 of the is250 injectors in, as i only had 4 replacements, The car
started but sometimes i get misfire on cylinder one and randon misfire codes on the scan tool.
Has anyone used a full set of is350 injectors on their 4gr with success?

Gville350

iTrader: (10)

First thought was...WTF? Then thought, hmmmm...just maybe they flow the same amount of fuel into both motors. Doubtful, but possible i guess...even with didn't part numbers.

So I assume these IS350 direct injectors are a direct plug-and-play into the existing IS250 harness?

Anyone know the flow rates (CC) between the two direct injectors?

Jeff Lange

iTrader: (1)

I searched long and hard to find IS250 injector flow rates without any luck. IS350 injectors flow 948cc.

Jeff

4sythe

Injectors are direct plug and play, even if the is350 injectors flow slightly more, that wouldnt me much of a factor, I was concerned about the port injection that the 350 injectors have also, if would pose a problem, it seems no one has ever tried the swap, im not sure if i should go full 350 or 250 injectors.

Jeff Lange

iTrader: (1)

You can't use the port injectors in your IS250. My suggestion would be to get a complete set of IS250 injectors and run them.

Jeff