Injector Feedback Value Results Cold Rattle

[kizbot Member Find all posts View Profile Close kizbot]

https://www.youtube.com/watch?v=E3DPqPQ4Wz0

See the youtube link for the techstream results. Number 3 looks like it's on it's way out starting at -2.5 when cold to -0.8 when hot.

I have developed a cold rattle. As soon as the engine is up to temperature the rattle stops.

I have booked the car in at Toyota to do a feedback value test in order to get a second opinion. What do you guys think?

GXL 2010, 105,000 original injectors.

[nudgebar Member Find all posts View Profile Close nudgebar]

the feedback value is only item to check in regards to injectors . personally i would get an injector specialist to determine if there is any leakage past the seals.

[krypto Avid PP Poster! Find all posts View Profile Close krypto]

Do the test a few times, its amazing how much it varies. My values have often been around 2 in the first 2 minutes since I started doing the tests several years ago. Also keep an eye on injector volume, which I believe should be 8-9 or less

[kizbot Member Find all posts View Profile Close kizbot]

Thanks Krypto. My volume started quite high around 14-15 but settled to 7.5 once hot. I'll do the test again and report back.