RomRaider

hello everyone i have a 2003 fxt and i am working on carberry rom which i am sharing with you here. Between 2000 and 3000 rpm I get knocks in the range of -0.50 and -3.00. I'm waiting for your help.

you'd also need a log file and LTV info to look at - plus the full list of mods on the car, what fuel you run and whereabouts in the world you are.

But for a guesswork answer you either have actual knock and you need to pull timing or you have false knock generated by something rattling in the engine bay. Det cans and some investigative work will give you the answer

this is log file

your log is lacking useful items, like manifold pressure, CL/OL status, final fuel base, injector duty, ignition total timing, a/f correction, a/f learning, VE, engine speed, throttle position, gear, vehicle speed etc.

really, you've logged 6 things and its just not enough to look at your timing table and see where you are on the table to get half an idea of whats going on.

What you can see at least is your IAM is 1 - so the car is in limp mode basically and still trying to pull 5 degrees on you.

Some items to check:
is the engine broken - compression/leakdown all good?
is there anything in the engine bay rattling that the knock sensor could be picking up?
is the knock sensor even attached to the harness/engine?
do you actually have 470cc injectors fitted or is this compensating for something?
does the car run ok on the original MAF based tune?
have you tried reducing timing a lot and also maybe smoothing your timing table out?


run through some basic checks first I think and then try some tuning work if everything checks out.

I live in Turkey, I use 95 octane gasoline. My vehicle's knock sensor, spark plugs and front oxygen sensor have just been replaced with original parts. However, the knocking problem persists. There are knocks at low revs and engine temperature from 80 C degrees. No knocking at high revs. The last log file I saved