Technical Injector Replacement 2007 panda 1.2

[lsmith12345]

This is the new one, incase you’re interested. As koaler said, there is just one spray hole, as opposed to what I’m guessing mine has which are multiple. We will put it on and see whether it works. If not, it will go back. The person on eBay said it was the right one so if so it will get exchanged most likely.

 

[svennelainen]

As a veteran redneck engine tuner, I advice you to replace all of them. Injectors might work but wear out and it affects the ability to make proper spray. If you replace one you will have a cylinder with distinctly different combustion and that can cause a lot of trouble.

 

[Mike1alike]

This is the new one, incase you’re interested. As koaler said, there is just one spray hole, as opposed to what I’m guessing mine has which are multiple. We will put it on and see whether it works. If not, it will go back. The person on eBay said it was the right one so if so it will get exchanged most likely.

It will surely work.
Clean the ones you have and work with carb cleaner while you're at it and will have them taken down.
And take a picture of those, I'm curious if they really have multiple holes. That doesn't make much of a difference anyway, what counts there very much is the volume of sprayed fuel.

 

[koalar]

Later Iwp 160

Have 6

They were changed across the every fiat model at the same time, so I doubt there's any other hardware changes, whether the ECU is reprogrammed I can't say,

As far as I know it was for improved economy

Is not ideal running one odd injector

A Cinquecento or was it Seicento was run on the latter injectors as an "upgrade" as far as I remember it ran, also if I remember correctly it was a 1.1

 

[koalar]

This is the new one, incase you’re interested. As koaler said, there is just one spray hole, as opposed to what I’m guessing mine has which are multiple. We will put it on and see whether it works. If not, it will go back. The person on eBay said it was the right one so if so it will get exchanged most likely.

Just a thought

If @rmjbn1 orders the latter injector you'd be able to do a swap

Yes you'd both be out postage. but the genuine IPW 116 are harder to find now and you have one, as all fiats now run the later iwp 160 injector

 

[lsmith12345]

Just a thought

If @rmjbn1 orders the latter injector you'd be able to do a swap

Yes you'd both be out postage. but the genuine IPW 116 are harder to find now and you have one, as all fiats now run the later iwp 160 injector

Well, it seems that Fiat have decided to put the old style injector on my car which works in my favour although there’s a problem. There is still a slight misfire and it seems to be coming from the second one from the left because when I remove the injector connector running nothing changes. That injector seems to be intact, the HT leads are fine as I’ve checked and I’m just wondering, do I now need another new injector? Any suggestions?

 

[Mike1alike]

Try spraying carb cleaner through it and see if thst passes. Could be dirty, clogged. Feed it 12 V while doing so, so it would open.

 

[koalar]

Well, it seems that Fiat have decided to put the old style injector on my car which works in my favour although there’s a problem. There is still a slight misfire and it seems to be coming from the second one from the left because when I remove the injector connector running nothing changes. That injector seems to be intact, the HT leads are fine as I’ve checked and I’m just wondering, do I now need another new injector? Any suggestions?

Is there a spark at the plug if you take it out and rest it on the engine block

What's the resistance across the injector pins

If you move the injector does the misfire move with it

 

[koalar]

I wouldn't feed constantly feed battery voltage to an injector

The coil will get quite hot

There only on for a few ms at a time

You may or may not get away with it

Risk vs cost, seems like a daft idea to me

 

[lsmith12345]

I wouldn't feed constantly feed battery voltage to an injector

The coil will get quite hot

There only on for a few ms at a time

You may or may not get away with it

Risk vs cost, seems like a daft idea to me

Don’t worry… I haven’t

 

[Mike1alike]

You don’t need to constantly feed it. Connect the (+) line and just touch intermittently the (-) line. If you make a system to feed it carb cleaner spray under pressure, works great to clean the injectors.
It's easier if you just connected the carb cleaner to the injection rail, electrically disconnect the fuel pump and start the engine while keep putting spray in. Engine runs on spray and injectors get perfectly cleaned. Can be effectively done with injectors off, to one injector at a time, like I said above. You can easily feed voltage to it using car injectors' plug and MES. Connect it and use the MES function from Actuators tab and it feeds 12 V. Absolutely no risk.

 

[lsmith12345]

I wouldn't feed constantly feed battery voltage to an injector

The coil will get quite hot

There only on for a few ms at a time

You may or may not get away with it

Risk vs cost, seems like a daft idea to me

Well, I’ve swapped the injectors round and now it seems that one of the yellow connectors is playing up. Now where to go from here…

 

[Mike1alike]

Well, I’ve swapped the injectors round and now it seems that one of the yellow connectors is playing up. Now where to go from here…

Is the retaining clip missing on the yellow connector?
Did the misfire follow the injector or you didn't test that yet?

 

[lsmith12345]

Is the retaining clip missing on the yellow connector?
Did the misfire follow the injector or you didn't test that yet?

Yes it is missing as I’ve been testing. Will putting it on make any difference though?
The misfire was caused by the injector breaking, I’ve replaced it and now on one of the other yellow connectors, it’s playing up as I’ve swapped the injectors round and still the misfire doesn’t change when I pull the yellow plug off the injector.

 

[Mike1alike]

Yes it is missing as I’ve been testing. Will putting it on make any difference though?
The misfire was caused by the injector breaking, I’ve replaced it and now on one of the other yellow connectors, it’s playing up as I’ve swapped the injectors round and still the misfire doesn’t change when I pull the yellow plug off the injector.

There is vibration. Having the connector without retaining clip does not make a difference instantly but on the long term, retaining clip missing does make the plug disconnect, loose/improper contact. Test that plug connectors first, engine running. Do you have voltage there. And did you check again the resistance between the plugs on that injector, what is it?

 

[koalar]

Does the misfire follow the inject position

 

[lsmith12345]

Does the misfire follow the inject position

No. Hence why I swapped them round to check, and the whichever injector is hooked up to on the second plug in from the left doesn’t work or isn’t firing properly, as when you remove the plug the misfire doesn’t get worse, but if you remove one of the other plugs it does make it worse.
It’s only happened today since I’ve replaced the other one (which is now working)

 

[koalar]

Great, we know it cylinder dependent

We don't know if it's fuel, spark or compression

Put a screw driver to the injector put your ear to the end and listen

You can hear them click

Check a working injector and the the suspect one do they sound the same

See if I can find a video the explains it better

 

[lsmith12345]

Great, we know it cylinder dependent

We don't know if it's fuel, spark or compression

Put a screw driver to the injector put your ear to the end and listen

You can hear them click

Check a working injector and the the suspect one do they sound the same

See if I can find a video the explains it better

Thank you for that. I’ll have to look next week when I’ve got access to the car

 

[koalar]