HKS A/F Knock AMP reads nothing and car sputters
10-08-2009, 04:36 AM
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HKS A/F Knock AMP reads nothing and car sputters
I have a 700bb JWT kit on my 05 6mt running HKS V Pro for management. This morning when I jumped in and started the car the HKS A/F Knock amp didnt read anything and when I went to drive it the car sputtered and missed really bad. I shut the car off and restarted with the same results. So I parked it and was gonna drive my truck. Well My truck had no oil pressure ****!!!!!!!!!!! So I tried the Z again. This time it worked fine and after a lil hesitation the car started to act normal again??? What do you think caused this? Dirty o2 sensor
10-08-2009, 10:59 AM
#3
I do not have a knock amp, but it desplaying zero means that it has detected 0 knock counts, which is a good thing. The fact that it had some missfires seems unrelated to the knock amp.
What kind of plugs are in your motor, one step colder? You are running 93 octane? Did you get gas somewhere you normally don't (wondering if you just got some bad gas)
just some ideas to get things rolling
What kind of plugs are in your motor, one step colder? You are running 93 octane? Did you get gas somewhere you normally don't (wondering if you just got some bad gas)
just some ideas to get things rolling
10-08-2009, 02:23 PM
#4
Tell us what configuration settings you had.
When you say it did not display anything, what do you mean? Was the LCD completely blank like it was turned off, or did it display a 0?
At that time, was it configured to display AFR or knock detection. FYI, I keep mine configured to display AFR, and only display knock detection during tuning. Once it's tuned, I let the knock detection be handled automatically between the AFK and the F-Con.
When you say it did not display anything, what do you mean? Was the LCD completely blank like it was turned off, or did it display a 0?
At that time, was it configured to display AFR or knock detection. FYI, I keep mine configured to display AFR, and only display knock detection during tuning. Once it's tuned, I let the knock detection be handled automatically between the AFK and the F-Con.
10-08-2009, 02:33 PM
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Tell us what configuration settings you had.
When you say it did not display anything, what do you mean? Was the LCD completely blank like it was turned off, or did it display a 0?
At that time, was it configured to display AFR or knock detection. FYI, I keep mine configured to display AFR, and only display knock detection during tuning. Once it's tuned, I let the knock detection be handled automatically between the AFK and the F-Con.
When you say it did not display anything, what do you mean? Was the LCD completely blank like it was turned off, or did it display a 0?
At that time, was it configured to display AFR or knock detection. FYI, I keep mine configured to display AFR, and only display knock detection during tuning. Once it's tuned, I let the knock detection be handled automatically between the AFK and the F-Con.
10-08-2009, 02:44 PM
#6
It sounds like an electrical problem. We have been seeing alot of these lately. Is something in the air?
Double check all of your wiring, and especially your grounds.
I'm assuming that you have an F-CON, is this correct?
Double check all of your wiring, and especially your grounds.
I'm assuming that you have an F-CON, is this correct?
Last edited by ttg35fort; 10-08-2009 at 02:48 PM.
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10-08-2009, 05:53 PM
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How does it act on cold starts? Does it run fine for a while and then start to run worse, or does it run bad right off the bat?
If it is fine on cold starts then progressively gets worse, I'd try replacing the o2 sensor.
If it is fine on cold starts then progressively gets worse, I'd try replacing the o2 sensor.
10-09-2009, 06:56 PM
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No it runs great cold, warm hot, part throttle, full throttle....It only has problems when the knock amp takes a ****. Then when reset, it takes about ten minutes and its back to normal.
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