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View Full Version : Pocket logger results, WTF ???


Todd's90
10-25-2007, 10:27 PM
Took the car for a spin with the logger. I got a knock count of 43 just slowly pulling out of my apartment complex. I saw anywhere from 10-40 counts of knock every time i let the clutch out in 1st.
and my throttle position sensor is showing 14% with the car at idle. the throttle position i can fix but my question about the knock is, WTF ?


here is a log of just normal acceleration, notice all the knock as I "roll out" of 1st gear.
http://i146.photobucket.com/albums/r246/Tbalestrini/knock.jpg


Here is hard acceleration, 12psi
http://i146.photobucket.com/albums/r246/Tbalestrini/knock2.jpg

Figs
10-25-2007, 10:33 PM
What logger software are you using?

Check your knock sensor. It's located on the back of the block underneath the intake manifold. Have you ever replaced it? It might be bad. They do go bad... how many miles on the car? Feel the backside of it... if it sticky or part of the backing is missing you need to replace it.

Doctor D
10-25-2007, 10:38 PM
What logger software are you using?

Check your knock sensor. It's located on the back of the block underneath the intake manifold. Have you ever replaced it? It might be bad. They do go bad... how many miles on the car? Feel the backside of it... if it sticky or part of the backing is missing you need to replace it. he has replaced it, i think its knock from his lifters personally. on tbdsm people gave him some tips on what to do

Figs
10-25-2007, 10:41 PM
Oh okay, I don't go on TBDSM anymore. Hardly do...

That's some nasty knock counts.

Doctor D
10-25-2007, 10:50 PM
yea and part throttle knock=phantom knock

Todd's90
10-25-2007, 11:02 PM
Lifters is kinda what I was thinking also, knock without any load on the motor. thanks for the help

Todd's90
10-25-2007, 11:12 PM
also, I'm getting a two errors: Air intake temp and barometer sensors. Replace the maf ?

JR.
10-26-2007, 06:52 PM
bad motor mounts

slowy
10-26-2007, 07:07 PM
bad motor mounts

they are prothanes. (although i dont know how old they are)

what part of the motor mount can go bad?