Test those injectors

[RichardP]

From the paperwork I received with the cleaned injectors they test them before and after cleaning. There was a note that said

Injectors would not fire at preflow.


JJ

I just called Injector RX and they said they were so dirty they could not even test them prior to cleaning them.

Interesting. The injectors worked fine after cleaning? You didn't have to replace them? Why did they get dirty is probably the bigger question, then. Do you have a non-stock filter setup? Maybe something weird happened in all your fuel tank messing around?


Richard P.

[blk96gt]

They were used injectors he got off ebay.

[ShadowBolt]

Yes I bought the 21lb. injectors because Ford changed from 19 to 21 during the 2002 year and I thought it may help my lean issue. I got them off e-bay and maybe they have been causing me issues ever since. I have had them about two years. I always run at least two fuel filters and have never had to change one due to drivability issues. I don't understand what has happened. I did not really think they would get dirty running good filters.


Jerry

[Supercharged111]

Jerry if I'm not mistaken the switch to 21# injectors coincided with a fuel pressure change, but don't quote me.

[ShadowBolt]

Jerry if I'm not mistaken the switch to 21# injectors coincided with a fuel pressure change, but don't quote me.

No the 2002 has a variable pressure fuel pump.

Jerry

[Supercharged111]

No the 2002 has a variable pressure fuel pump.

Jerry

Ahh, so it coincided with the switch to returnless then?

[ShadowBolt]

Ahh, so it coincided with the switch to returnless then?

Yes thee is no return on the 2002.

JJ