injector cleaning - opinions

[cro320]

What are the known symptoms of clogged fuel injectors?
Is it really necessary to clean them ultrasonic or I just need to put some cleaning fluid in my fuel?

[sam325is]

Worth the money to have them ultrasonically cleaned. Symptoms are rough idle, loss of responsiveness and if you have leaking injectors your car will be reluctant to start from cold.

[psychochild187]

where do they leak from ? the spray nozzle or the o-rings
just woundered as my friends car does this

[AlpineAde]

Dodgy injectors can be noisy too.

They're well worth looking after.

I'm getting mine done when my inlet manifold goes on.

[cro320]

well I need to check them first, but to do that I need to take them off

[rj]

You can check the resistance values with them in situ.

[Martinaston]

The only way to check the spray pattern is to remove the whole fuel rail, injectors and regulator and then turn the starter over and have a look at the spray pattern.
The fuel should come out in a cone shape and be a fine mist but what you'll see will look more like a water pistol
If you think there not working correctly then just get them cleaned anyway, it will cut the fuel bill.

[cro320]

You can check the resistance values with them in situ.

how?

[leeparkes]

roughly how much is it to have them cleaned?

[sam325is]

looking at about £100