Problem with RPM (1 Viewer)

[Habib]

Hi friends
Please help me.. I don’t know why the RPM can’t be stable
Am waiting for your reply
Thank you all

 

[Tools R Us]

What kinda car do you have? If gas/fuel injection I would start with checking the TPS. Check engine light on, what codes?

 

[Habib]

Hi
I have LX450 1997

 

[Tools R Us]

Guessing OBD2 like US spec? What codes are stored?

 

[80t0ylc]

In video, it does look like check engine light is illuminated. Sounds like a diesel and with location shown, I'm betting it is. I agree with tools r us - codes?

 

[nukegoat]

In video, it does look like check engine light is illuminated. Sounds like a diesel and with location shown, I'm betting it is. I agree with tools r us - codes?

kinda doubt it with a 5200rpm redline

 

[Tools R Us]

In video, it does look like check engine light is illuminated. Sounds like a diesel and with location shown, I'm betting it is. I agree with tools r us - codes?

Have never heard of a LX450 that wasn't 1FZ and OBD2?

 

[80t0ylc]

kinda doubt it with a 5200rpm redline

Missed that - good point.

Have never heard of a LX450 that wasn't 1FZ and OBD2?

Since you own a LX450, you would know better than me....lol. Main point was that I saw engine check light in video. If you're doing mud on your phone, you might not be able to see that.

 

[jonheld]

It doesn't sound like the RPM of the motor is changing, just the tachometer. FWIW, I have noticed this a few times on my LX450, usually at idle. However I don't really stare at the tach when driving.
It appears like the needle takes a few hits once in a while. Likely a poor connection between the igniter and dash cluster.

 

[80t0ylc]

It doesn't sound like the RPM of the motor is changing, just the tachometer. FWIW, I have noticed this a few times on my LX450, usually at idle. However I don't really stare at the tach when driving.
It appears like the needle takes a few hits once in a while. Likely a poor connection between the igniter and dash cluster.

According to his speedometer, he's doing just under 55 mph and that's not fluctuating either. So with those 2 clues, I'd have to agree with a poor connection since it's an electric tach.

 

[Alleycats]

My tach does exactly the same thing, but it seems to be intermittent and does not seem to be related to engine performance.

 

[Habib]

Hi bro
The engine light is on because catalyst filters are removed but i had no problem.. I drive in 2 years with out catalyst filter no problem.. but now i have this problem after some car service
1 trothel claining
2 gear oil change
(I am sorry i have poor English )
Thank you all friends

 

[Habib]

In video, it does look like check engine light is illuminated. Sounds like a diesel and with location shown, I'm betting it is. I agree with tools r us - codes?

Hi bro
It is gasoline engine 1FZ-FE

 

[Habib]

 

[80t0ylc]

Hi bro
The engine light is on because catalyst filters are removed but i had no problem.. I drive in 2 years with out catalyst filter no problem.. but now i have this problem after some car service
1 trothel claining
2 gear oil change
(I am sorry i have poor English )
Thank you all friends

Can you return your car to the person that serviced it? If you do not see a performance difference, it could be a loose electrical connection that happened when your car was serviced. In your video it looks like your speed and engine sound does not fluctuate with the tach rpm indications.

 

[Habib]

Can you return your car to the person that serviced it? If you do not see a performance difference, it could be a loose electrical connection that happened when your car was serviced. In your video it looks like your speed and engine sound does not fluctuate with the tach rpm indications.

Thank you for reply
Tomorrow i will try to make good video for this problem
Thank for all friends