Clicking noise when accelerating

[A4TuNeD]

When I accelerate I hear a short burst of high pitch clicking, it happens every so often. At first I thought it might be the fact that I changed from 93oct to 89 oct because my dad wouldnt pay for 93 anymore. I have GIAC 93 oct program but Im skeptical that the clicking is because of switching from 93 to 89. Can anyone shed any light on this?

[Slo.Mo.Shun.]

Use the proper octane

[A4TuNeD]

lol i just said that I didnt think that was the problem, I put a full tank of 93 back in a couple weeks ago and I heard the clicking AGAIN

[Slo.Mo.Shun.]

Try more than one tank of 93 and see if the noise persist wen you rev the car.

Try to get it on video.

[A4CE1]

try some fuel system cleaner/injector cleaner

[Slo.Mo.Shun.]

Still 89 on 93 programing is a very bad idea.

[TunaRollZ]

first thought w/o hearing the sound would be that it's knock. I agree with HID though...see if you can hear it at idle rev.

[Dub2]

Your dad pays for your gas?

[A4TuNeD]

yes im only 18, but lets please not turn this into "another spoiled kid driving an audi" thread

[Grk_A4]

If you dad doesn't pay for it then get rid of the chip or find some way to pay for it. It can only hurt your car if you aren't providing the proper fuel for the software. Not trying to bash you, I am only 19 and it's not the greatest feeling paying $3.49 for premium fuel, but hey it's a small sacrifice for owning such a great vehicle.

[cdemartino]

Why the fuck would you run 89 on a 93 chip? If you can't afford the gas, get a damn job. You shouldn't be driving an Audi if you can't afford premium.

[A4TuNeD]

^^ i can only shake my head and try to understand the stupidity of your comment.

[cdemartino]

LOL you're calling me an idiot? Oh the irony.

[A4TuNeD]

first of all im in college and my dad will not let me get a job, and if I do he will cut me off(because he wants me to study)....second since he pays for everything and requires a gas receipt to prove im not getting 93 im pretty much screwed. so instead of being a f$%&*@ retard im trying to figure out if the clicking noise is actually from the change from 93 to 89 or some other problem

[A4TuNeD]

Still 89 on 93 programing is a very bad idea.

Im still in awe of how you manage to run meth/75shot/and a testpipe on your CVT, its simply amazing! congrats you are one of the first im sure!!

[jdubbs119]

if it makes you fell better my mommmy and dadddy plays gas for me too


on a side note, real bad idea filling up the car was 89, the car is made for premium and to run off it, im suprised the CEL hasn't come on because most likley, when you make a downgrade of gas like that, the CEL is supposed to pop up, mainly because you car needs that premium baby.

[A4TuNeD]

i think ill just have to find a way to bypass my dad and put 93 in again, that would be gggg rrr eee aaa tttt

[polyconsoler]

Your car was made for Premium gas even wtihout the chip.

I think its kind of silly, the difference between Premium and 89 is like 15-20 cents (and thats stretching it)? A full tank of gas is 16 gallons. So at the most your dad is "saving" $3.20 a fill up. And is going to cut you off if you get a job so you can afford that extra $3.20 a fill up in your B7 A4 (with GIAC).

Whats your gas mileage like on 89 anyways?

[TunaRollZ]

what's a few cents per gallon difference when it comes to NOT popping your motor? That's far more expensive and a huge inconvenience...

[4-tified]

first of all im in college and my dad will not let me get a job, and if I do he will cut me off(because he wants me to study)....second since he pays for everything and requires a gas receipt to prove im not getting 93 im pretty much screwed. so instead of being a f$%&*@ retard im trying to figure out if the clicking noise is actually from the change from 93 to 89 or some other problem

You need to explain to your dad that not using the required minimum grade fuel will not allow your engine to run at is was designed to run, and it can lower your mpg as the engine has to run at a lower efficiency. Also, if you are running 89 then switch back to stock programming. With stock programming your engine will be better protected as the ECU pulls back timing when it detects knock. You'll have less power, thus running with less efficiency.

This lower octane and knock isn't a big issue during the cold winter months as knock is less likely to happen with colder air operation. However, during the summer and warm/hot weather the conditions are ripe for knock to occur. Also, because the engine is not running at it's peak, it's probably getting lower gas mileage thus negating some of the savings from the lower priced gas.

89 is probably 10 cents less per gallon. At 16 for full fill up, that's only $1.60 in savings. That's negligible savings considering the loss in enginer performance and potentially lower mpg.
Even if the gas difference were 20 cents, a full tank will only cost about $3.20 per tankful! Your dad would save more money by getting better mpg by keeping all his cars tire pressures at the higher recommended pressure for a fully loaded car, or for running at continuous highway speeds.

He's making a mistake by spending so much money on a car you really don't need, but then he pinches pennies, LITERALLY, by using the incorrect fuel. It doesn't make sense.

[4-tified]

if it makes you fell better my mommmy and dadddy plays gas for me too


on a side note, real bad idea filling up the car was 89, the car is made for premium and to run off it, im suprised the CEL hasn't come on because most likley, when you make a downgrade of gas like that, the CEL is supposed to pop up, mainly because you car needs that premium baby.

NO, it won't. The 2.0T is designed to be able to run just fine on lower octane fuel. When knock is detected the ecu simply controls how the engine operates by allowing the engine to produce less power.
In my view that's less efficient and potentially lowers mpg, negating any savings in using lower octane fuel.
The other big issue is that he shouldn't be running performance software while using lower octane fuel.

[4-tified]

Your car was made for Premium gas even wtihout the chip.

I think its kind of silly, the difference between Premium and 89 is like 15-20 cents (and thats stretching it)? A full tank of gas is 16 gallons. So at the most your dad is "saving" $3.20 a fill up. And is going to cut you off if you get a job so you can afford that extra $3.20 a fill up in your B7 A4 (with GIAC).

Whats your gas mileage like on 89 anyways?

Quite!

[Sanjman]

I can't believe your dad is that cheap with gas when he actually bought you an Audi. Save yourself the future costs of repair with using 91-93 octane. You are stupid to even think about chipping let alone get the 93 octane software if you aren't going to use gas with the correct octane rating. By now you probably have enough sludge buildup to give you shitty gas mileage and have probably paid enough for the miles you lost by not putting in 93.

Seems like you've already had your car for a year... I hope this wasn't done from the beginning.

Shell V-Power FTMFW!!!

[SilverB7FL]

dude, you cannot put 89 in this car. The lowest you can go is 91 it says in inside the fuel door. Tell your dad he better be prepared to buy you a new car if he wants to keep putting 89 in. You need to run a few tanks of the 93 to flush it out and it should be fine. I got bad gas one time and my octane levels were too low, car ran like ass, all kinda of noises.

[A4TuNeD]

TRUST ME I understand that I need to be putting 93 in my car, I have over 35,000 miles on the car and have been using 93 for about 95% of that time. It was been recently (since i went to college) that I have been forced to use 89. If the knocking noise is extremely detrimental (as everyone has said) to the car then I will have to come to some agreement with my dad. I know how stubborn and ignorant he is I don't need people pointing it out.

thank you for the advice though, cheers!

[RedS-line]

drag your dad to your car, open the gas door, and show him the sticker that says 91 OCTANE OR BETTER. Then tell you went to the audi dealer and got new software that requires 93 OCTANE or else the engine will fail and it wont be covered under warranty (or some story like that). Or get him to buy the 91 octane and go buy a case of octane boosters and start adding them in yourself.

[4-tified]

The sticker shows what octane is "recommended", which is for best performance.
The engine won't blow up.

What can happen is that knock can occur at certain times. When that happens, the ECU will sense the knock through the sensor and it will adjust timing to control the knock.
That will result in lower power output. That's it. That's the negative.
The ECU will continue to operate in that mode until it sense that the knock has stopped at which point it will readjust settings. If the knock comes back it will adjust again.

The problems are lower engine output and thus lower efficiency. It's quite possible that MPG might drop if the car is running in knock mode for long. However, unless you're heavy on the throttle and redlining often, knock will be at a minimum in normal driving.
Excessive knock over a longer period of time could potentially lead to engine trouble.
Excessive knock episodes are much more likely when running performance software that needs the protection of higher octane fuel. That's what "higher octane" rating means.
It means the fuel is less prone to auto-ignition, detonation, knock.
However, using 89 doesn't automatically mean the engine will blow and damage itself.

Does that mean I would use lower octane fuel? Yes, if higher octane were not available I would use lower octane. However, I wouldn't use lower octane exclusively. I paid for maximum performance and I'll pay the little bit extra in fuel costs to get the best performance from my engine.
If I were running performance software, then I would not use lower octane.
Granted the same safety ECU controls are there with the performance software. However, knock events are more likely to happen and more often due to the softwares use of higher boost pressure and altered a/f mapping.

As far as what that ticking sound is, go to the dealer and have them check it out.
"high pitched clicking" could be a number of things.
Turn your 93 software off until you get the correct octane fuel in there.

BTW, don't you have the extra $3-$4 to pay for the correct fuel per tankful?
I almost sure you get extra spending money. Make a deal with your dad that you'll use some of that spending money to cover the difference in cost between the 89 and 93.

[DTMOOOO]

Yea just cover the difference better 89 and 93 what would a tank be like 5 bucks? Go collect some cans and cash them in if you need to bhaha

[camhabib]

Am I the only one who finds it a little odd that this kid could afford a $500+ chip but can't afford to pay an extra $3 or even a full tank of gas? Get rid of the chip, start filling up with the correct gas, or suck it up. Those are your three options.

[Sanjman]

Am I the only one who finds it a little odd that this kid could afford a $500+ chip but can't afford to pay an extra $3 or even a full tank of gas? Get rid of the chip, start filling up with the correct gas, or suck it up. Those are your three options.

Of course... but he gave his story... assumed that it is all true or if he was the dumbass who didn't realize the car takes 91/93 and try to blame it on his dad... but who are we to judge his story... we just provide feedback

[4-tified]

Am I the only one who finds it a little odd that this kid could afford a $500+ chip but can't afford to pay an extra $3 or even a full tank of gas? Get rid of the chip, start filling up with the correct gas, or suck it up. Those are your three options.

Yeah. Cut down on the luxuries:
cigarettes 1 pack per day= $4-$5 per day
2 bottles Coke or bottled water (fill empties from tap), $1 each= $2 per day
2 snacks from vending machine= $1.50 per day
Volunteer psych experiments, $15 and up per week= +$15 per week
Savings per week= $5 + $2 + $1.50 x 7=$59.50 + $15= $74.50!

Filling up with correct octane fuel to maximize power and performance...
PRICELESS!

Making dad happy so he keeps paying the bills...
Even MORE priceless.

[A4TuNeD]

Am I the only one who finds it a little odd that this kid could afford a $500+ chip but can't afford to pay an extra $3 or even a full tank of gas? Get rid of the chip, start filling up with the correct gas, or suck it up. Those are your three options.

In case you are dyslexic or cant read, I dont pay for my gas...it has nothing to do with paying the $3 more. It has to do with my dad giving me a credit card and asking for a receipt back everytime! goddamit man read please. I didnt mean for this to start a bashing of me or the cheapness and ignorance of my dad.

[A4TuNeD]

SANJMAN: thanks for your 2 cents, obviously I know what gas to put in my car. If you could F%&$*# READ!! I said that I have been putting 93 in since I got my chip and recently since I went to college my dad has gotten strict on my expenses and has been keeping a close watch on what I spend my money on. now sanjman STFU you dont know wtf you are talking about

[A4TuNeD]

Yeah. Cut down on the luxuries:


Making dad happy so he keeps paying the bills...
Even MORE priceless.

YAYAYAYA we have one person who understands why I have to listen to him, THANK YOU!!!!

[camhabib]

In case you are dyslexic or cant read, I dont pay for my gas...it has nothing to do with paying the $3 more. It has to do with my dad giving me a credit card and asking for a receipt back everytime! goddamit man read please. I didnt mean for this to start a bashing of me or the cheapness and ignorance of my dad.

Incase you can't use that cluster of cells, normally in most people referred to as a "brain," grow a set of balls and stop breast feeding off your dad.

[Denio24]

This thread is full of rants. I experience the same issue when going WOT and I usually hear it lower in the RPM range at around 2-2.5 k rpm when exhaust gas flow is still low and i just start to gain some decent power. It sounds like three high pitched clicks in a row then it stops. Definitely coming from the front, and it makes me think that this is either the throttle body or the IMRC. Oh, and yay for necrobump.

[Okedokey]

Add oxtane booster and say its to prevent maintenance issues.

[Denio24]

Add oxtane booster and say its to prevent maintenance issues.

I was thinking that this noise is attributed to a loose wastegate actuator arm.

[Denio24]

Bringing this thread back. Could it be a cv joint? im hearing this noise as the torque gets larger in the first 1-3 seconds of wot of lets say 4th gear at 45 mph. Other than that the car runs fine and its definitely not an octane issue.

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