Help Engine pinging on innova vvti

[bratski]

I currently use petron unleaded with 93 octane, i noticed on moderate to hard acceleration tumotope yung makina. I have the a/t transmission by the way. on older cars they have the distributor which you can adjust, sa innova kasi i can't see any distributor. i ruled out the fuel used kasi on my other cars wala naman pinging using the same fuel. thanks

[j_avonni]

I currently use petron unleaded with 93 octane, i noticed on moderate to hard acceleration tumotope yung makina. I have the a/t transmission by the way. on older cars they have the distributor which you can adjust, sa innova kasi i can't see any distributor. i ruled out the fuel used kasi on my other cars wala naman pinging using the same fuel. thanks

Unleaded with 93 RON is just fine with your Innova. Hadn't experienced it with my J version. Just have it check at the casa.


:coffee: [SIZE="1"]3833[/SIZE]

[attyallanlatras]

I currently use petron unleaded with 93 octane, i noticed on moderate to hard acceleration tumotope yung makina. I have the a/t transmission by the way. on older cars they have the distributor which you can adjust, sa innova kasi i can't see any distributor. i ruled out the fuel used kasi on my other cars wala naman pinging using the same fuel. thanks

I have an Innova G vvti. What do you mean by "pinging"?

[KBR]

I currently use petron unleaded with 93 octane, i noticed on moderate to hard acceleration tumotope yung makina. I have the a/t transmission by the way. on older cars they have the distributor which you can adjust, sa innova kasi i can't see any distributor. i ruled out the fuel used kasi on my other cars wala naman pinging using the same fuel. thanks

may check engine light ba??? if not, then check the Spark Plugs. pero if everythings OK, then the last thing to check are the Knock Sensors.


aite, peace.

[niky]

I currently use petron unleaded with 93 octane, i noticed on moderate to hard acceleration tumotope yung makina. I have the a/t transmission by the way. on older cars they have the distributor which you can adjust, sa innova kasi i can't see any distributor. i ruled out the fuel used kasi on my other cars wala naman pinging using the same fuel. thanks

You can't rule out fuel by what your other cars like... different cars react differently to different fuels. Try running higher octane... if that doesn't cure it, then you have a sensor problem... possibly a knock sensor or O2 sensor. Those two sensors are what tell the engine to adjust the timing.

[bumags]

Had that experience din before...have it checked sa casa.
Have been using Shell Velocity then V-Power now since I got my Innova last 2006.
Problem usually shows up when I gas up other than Shell...
HTH...

[Galactus]

I have an Innova G vvti. What do you mean by "pinging"?

Pinging = Kumakatok yung makina (engine knock). Usual cause is bad/low octane fuel.

[niky]

Also note that not all high octane gasolines are the same. Gas stations use the same base gasoline for all octanes. They just change the additive package.

Some engines like the additive package of Petron Blaze... some, like mine, prefer the package of V-Power. Some cars needing 95 don't actually run well on Blaze. But this is a case-to-case basis.

The engine on your Innova shouldn't be so sensitive, though... best to have it checked at the casa... maybe clean the O2 sensor, run a new tank of good fuel, and see what you get.

[bratski]

sir niky,
since you mentioned the knock sensor and o2 sensors, i just have a few questions
1. are knock sensors and o2 sensors the same?
2. can cleaning an o2 sensor be done diy?
3. can these components fail prematurely?
4. can you also clean the knock sensor?

Ive tried loading up on petron e10 (95 octane) yesterday to see if there's any difference. but im curious as to the knock sensor, since the innova has one, its job is to adjust the timing accordingly right? but since the engine still pings there must be something wrong with the sensor, correct me if im wrong. thanks

[niky]

Yup. It's either the knock sensor not doing its job (can't be cleaned... it's a vibration sensor, not a fluid sensor) or the O2 sensor not adjusting properly.

O2 sensors can go bad due to deposits, but it's not that common. You can clean it if you have a socket wrench for O2 sensors (they have a notch so they don't catch on the sensor wire) or use an open wrench with a lot of patience. Check if there are deposits on it... you can clean it off with a rag. But usually, it isn't this.

[bratski]

where can i find the location of the o2 sensor and what does it look like? sorry for the noob question.

[niky]

In the exhaust, there should be one before the primary catalytic, and sometimes, there'll be one after. Just look for the wire leading to the exhaust.

[bratski]

niky,
thanks a lot bro, ill try to check the o2 sensor.a few days ago. i filled up with petron e10 with 95 octane, weird thing is the pinging went away for a few days until tonight.

[niky]

Maybe it's an issue with your fuel tank? Fuel starvation on a low tank or a pump issue? What was the fuel level when it started pinging again?

[bratski]

Maybe it's an issue with your fuel tank? Fuel starvation on a low tank or a pump issue? What was the fuel level when it started pinging again?

i dont usually let the fuel level below 1/4.the pinging occurs occassionally whether at full tank or half tank, however i noticed that below the 1/2 mark the pinging occurs more often and when the car is driven for about over an hour in stop and go traffic traffic. in driving short distances and less traffic routes, i hardly notice any pinging.

[niky]

Fuel pump or filter then? Might be that your fuel is getting too hot... You really ought to get a diagnosis at the casa...

[bratski]

^^will do sir niky, kaso saan ba ok magpa service na casa, ive had bad experiences na sa mga toyota casas, it took me 10 years din bago ako bumili ng toyota because of this. meron bang shops sa banawe area that are adept at checking?

[bratski]

follow up question, i remembered that i recently checked my plugs and let my mechanic put it back, maybe he didn't screw it tight enough...so:
1.can a loose sparkplug cause pinging?
2. if water is present in the fuel tank, can it also cause pinging?

[vinj]

Try to have a computer check on the engine, one probablity also is that the ignition timing may not be set to spec. What plugs are you running now? Did you try running colder plugs? Try also cleaning the sensors if needed (O2 and the intake sensor).

[bratski]

Try to have a computer check on the engine, one probablity also is that the ignition timing may not be set to spec. What plugs are you running now? Did you try running colder plugs? Try also cleaning the sensors if needed (O2 and the intake sensor).

first thing i did after acquiring the unit was clean the intake sensor using spray on electrical contact cleaner. before cleaning i havent experienced any pinging sound, maybe i need to reset the ecu first? as i remembered i did not remove the battery cable when i did the cleaning.i just unplugged and plugged the intake sensor during cleaning.i havent got the chance to change the sparkplugs yet, its on stock plugs as of now.reg the 02 sensor i havent the slightest idea how to clean it as i dont know what it looks like hehehe