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post #1 of 10 Old 09-01-2009, 04:07 PM Thread Starter
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rough idle

i just replaced my ficm and still have a rough idle issue when i stop. i had the po611 code so i replaced the ficm. now i have no codes but still idles rough at some stop signs. anyone got ant ideas on what to look at?

studs,egr delete(sinister),dieselsite coolant filter, nuc oil bypass, dj's fuel + regulated fuel return, sct by eric, 4in silverline no cat, isspro gauges, cat elc coolant, hids, lots of other odds and ends......
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post #2 of 10 Old 09-01-2009, 04:14 PM
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Warm engine, cold engine? When does it do it?

Meet up with Dan and hook up to AE and run a buzz and contribution test

Email: Dave@powerstroke.org
2011 F150 Ecoboost Crew cab lariat. Custom tunes from KEM and 5Star, and Unleashed
2012 F150 Crew Cab Ecoboost stock for now-Totaled March 12 2015
2006 F250 ECSB Lariat 4x4

Leveling kit, 315/70/17 Kelly TSRs on Method race wheels
ARP studs and OEM gaskets done by Renegade Diesel
ECM and Atlas 40 FICM tuned by Bill at PHP SCT tunes by Truck Source Diesel. Gearhead, Innovative, Wildman and Tyrant diesel
Flowmaster/MBRP Hybrid Exhaust
Edge Insight CTS
Coolant filter
Bulletproof diesel FICM EGR Delete, Oil Cooler and Water Pump, and Light bar.
Dually LED lights from Stealth Automotive/Xpedition Outfitters
No Limit Fab 6.0 Cold Air Intake
http://www.bulletproofdiesel.com/default.asp
http://nolimitfabrication.com/
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post #3 of 10 Old 09-01-2009, 04:18 PM Thread Starter
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dan has one?

studs,egr delete(sinister),dieselsite coolant filter, nuc oil bypass, dj's fuel + regulated fuel return, sct by eric, 4in silverline no cat, isspro gauges, cat elc coolant, hids, lots of other odds and ends......
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post #4 of 10 Old 09-01-2009, 04:23 PM
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Quote:
Originally Posted by Dave View Post
Warm engine, cold engine? When does it do it?

Meet up with Dan and hook up to AE and run a buzz and contribution test
On the 6L's say it passes a buzz test all 8 and contribution is fine but it runs rough only while cold? As in up until that normal operating range... then once it's "warm" it smooths out like water. Does that mean the injectors are failing? Even though it acts normal at all times once it's warmed up. And is that any different for a 7.3? I heard that meant the injectors were failing, but I don't get how that can be if the engine runs fine once warmed up.

... not trying to hijack... I'm just curious.

Old Truck: 00 F350 XLT DRW: basic first few mods. S&B, 4" straight pipe, gauges, CCV, EBPV and Wastegate line deletes, LED Sills, sweet custom headlights, smoked cab lights, Ventshades, Tint.
Traded in at 196k miles.

"Brand Newish" Truck: 02 Chevy S10 2.2L 5sp. Reg cab 4x2. Badass custom made shifter, foglights, 20% tint, AVS Vent-shades, Stock Intake mods, Electric Fan conversion .
~ 95k miles.
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post #5 of 10 Old 09-01-2009, 04:27 PM
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Quote:
Originally Posted by TurboSevenThree View Post
On the 6L's say it passes a buzz test all 8 and contribution is fine but it runs rough only while cold? As in up until that normal operating range... then once it's "warm" it smooths out like water. Does that mean the injectors are failing? Even though it acts normal at all times once it's warmed up. And is that any different for a 7.3? I heard that meant the injectors were failing, but I don't get how that can be if the engine runs fine once warmed up.

... not trying to hijack... I'm just curious.
If it goes away when its warmed up it could be one of two things. You need an oil change or you have a sticking injector

Email: Dave@powerstroke.org
2011 F150 Ecoboost Crew cab lariat. Custom tunes from KEM and 5Star, and Unleashed
2012 F150 Crew Cab Ecoboost stock for now-Totaled March 12 2015
2006 F250 ECSB Lariat 4x4

Leveling kit, 315/70/17 Kelly TSRs on Method race wheels
ARP studs and OEM gaskets done by Renegade Diesel
ECM and Atlas 40 FICM tuned by Bill at PHP SCT tunes by Truck Source Diesel. Gearhead, Innovative, Wildman and Tyrant diesel
Flowmaster/MBRP Hybrid Exhaust
Edge Insight CTS
Coolant filter
Bulletproof diesel FICM EGR Delete, Oil Cooler and Water Pump, and Light bar.
Dually LED lights from Stealth Automotive/Xpedition Outfitters
No Limit Fab 6.0 Cold Air Intake
http://www.bulletproofdiesel.com/default.asp
http://nolimitfabrication.com/
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post #6 of 10 Old 09-01-2009, 04:27 PM Thread Starter
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mines does it when i stop at lights, not all the time there seems to be no rime or reason when, the whole truck just starts shacking. its like it has a problem idling sometimes when i come to a stop. when the trucks warm i guess.

studs,egr delete(sinister),dieselsite coolant filter, nuc oil bypass, dj's fuel + regulated fuel return, sct by eric, 4in silverline no cat, isspro gauges, cat elc coolant, hids, lots of other odds and ends......
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post #7 of 10 Old 09-01-2009, 04:43 PM
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Quote:
Originally Posted by Dave View Post
If it goes away when its warmed up it could be one of two things. You need an oil change or you have a sticking injector
Hhmmmm. OK. Well that's interesting.

Old Truck: 00 F350 XLT DRW: basic first few mods. S&B, 4" straight pipe, gauges, CCV, EBPV and Wastegate line deletes, LED Sills, sweet custom headlights, smoked cab lights, Ventshades, Tint.
Traded in at 196k miles.

"Brand Newish" Truck: 02 Chevy S10 2.2L 5sp. Reg cab 4x2. Badass custom made shifter, foglights, 20% tint, AVS Vent-shades, Stock Intake mods, Electric Fan conversion .
~ 95k miles.
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post #8 of 10 Old 09-02-2009, 04:35 PM Thread Starter
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met up with dan today and did a buzz test and it passed and showed no codes.....

studs,egr delete(sinister),dieselsite coolant filter, nuc oil bypass, dj's fuel + regulated fuel return, sct by eric, 4in silverline no cat, isspro gauges, cat elc coolant, hids, lots of other odds and ends......
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post #9 of 10 Old 09-02-2009, 04:37 PM
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Quote:
Originally Posted by scotty2280 View Post
met up with dan today and did a buzz test and it passed and showed no codes.....
Contribution/balance test...?

Old Truck: 00 F350 XLT DRW: basic first few mods. S&B, 4" straight pipe, gauges, CCV, EBPV and Wastegate line deletes, LED Sills, sweet custom headlights, smoked cab lights, Ventshades, Tint.
Traded in at 196k miles.

"Brand Newish" Truck: 02 Chevy S10 2.2L 5sp. Reg cab 4x2. Badass custom made shifter, foglights, 20% tint, AVS Vent-shades, Stock Intake mods, Electric Fan conversion .
~ 95k miles.
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post #10 of 10 Old 09-02-2009, 04:49 PM Thread Starter
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it didnt give the option for that when it was hooked up.

studs,egr delete(sinister),dieselsite coolant filter, nuc oil bypass, dj's fuel + regulated fuel return, sct by eric, 4in silverline no cat, isspro gauges, cat elc coolant, hids, lots of other odds and ends......
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