replaced injectors.... need reflash?

[Clone]

I have a friend with a 6.0 PSD and he replaced 4 injectors that were bad. The truck has obviously quieter engine noise, but throttle response is down ie turbo lag. There was zero turbo lag before the injector change. Does it need reflashed to have optimal performance?

[cntryboy17]

I take it he just replaced them w/ stock injectors?

[Clone]

Originally Posted by cntryboy17

I take it he just replaced them w/ stock injectors?

The Ford stealership did the work. We assume that's what they used. They cost $260 each. They also replaced the ICP. Not sure if that matters.

[Clone]

We are just stumped as to why the truck performed better before he took it in (originally for a check engine light). The dealership said there were 3 bad injectors so he replaced all 4. Also they said the ICP needs replaced (probably causing the check engine light) so it was replaced as well. Right at a $2000 bill and the truck is sluggish. The stealership doesn't think there is a problem.

[MUDSTROKIN']

Originally Posted by Clone

The dealership said there were 3 bad injectors so he replaced all 4. .

My truck has 8 injectors?

[Clone]

Originally Posted by MUDSTROKIN'

My truck has 8 injectors?

All 3 bad ones were on one side so he replaced all 4 on that side.

[MUDSTROKIN']

how'd he know the injectors were bad?(symptoms, diagnosis,etc..)

[Clone]

The dealership said they were bad. My friend agreed with that because the truck sounds like it fires up on 5 cylinders and the rest pick up right after start-up.

[Clone]

Or reflash needed for the ICP change? Or will the truck "learn" the changes as the dealership says? It's sure got a lot of lag to work out right now. Is it going to ever get there?

Thanks
Adam

[04f350CC]

I replaced my ICP sensor in my driveway and the truck ran perfectly normal after that was done. I've sometimes disconnected both batteries and turn the key to on position then shut it back off and let it sit for a half hour. Then reconnect the cables it will force the truck to "relearn" and might help. i've had to do this before on gas cars I've owned after fixing issues or replacing parts.
good luck