Installed hybrids, now bad idle - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 10 (permalink) Old 06-04-2010, 02:35 AM Thread Starter
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Installed hybrids, now bad idle

Recently I installed 230/80% hybrids and just got my chip back yesterday. The truck idles like crap both with and without the chip in. It is rough and lopey, but no smoke coming from the exhaust. Drove the truck to work and back today (about 75 miles) to clear the air out of the HPO system and nothing has changed.
AE shows a P0266 - Injector #2 cylinder contribution/balance fault during the contribution test. Change rotational velocities are close to 0 for all cylinders but #2, which is about 3%.
Also, the truck is doggy in the low RPMs and wont go anywhere in the lower tunes and then about 1400 RPM it takes off.
Other than that, the truck runs like a bat outta hell
Any ideas?

Kevin
00 F250 7.3 Ex Cab LB, 6-spd, South Bend Con-O, DP Tuning, Casserly 230/80% Hybrids, GTP38R, Reg. Return, AutoMeter Boost/Pyro/Fuel Press, MBRP 4", Napa 6637, ITP OBA, 04 Headlights, Ranch Hand Rear
04 F250 6.0 CC SB, SCT with tunes by Elite, MBRP 4", Isspro Boost/Pyro, Warn manual hubs
92 Bronco
75 Jeep CJ-5
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post #2 of 10 (permalink) Old 06-04-2010, 02:39 AM
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Re: Installed hybrids, now bad idle

Check engine light on? Possible the #2 injector came unplugged?
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post #3 of 10 (permalink) Old 06-04-2010, 02:54 AM Thread Starter
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Re: Installed hybrids, now bad idle

No CEL and its still plugged in because it passes the buzz test

Kevin
00 F250 7.3 Ex Cab LB, 6-spd, South Bend Con-O, DP Tuning, Casserly 230/80% Hybrids, GTP38R, Reg. Return, AutoMeter Boost/Pyro/Fuel Press, MBRP 4", Napa 6637, ITP OBA, 04 Headlights, Ranch Hand Rear
04 F250 6.0 CC SB, SCT with tunes by Elite, MBRP 4", Isspro Boost/Pyro, Warn manual hubs
92 Bronco
75 Jeep CJ-5
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post #4 of 10 (permalink) Old 06-04-2010, 06:33 AM
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Re: Installed hybrids, now bad idle

Might double check with your tuner to be sure there was not an accidental mix up with your tunes.
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post #5 of 10 (permalink) Old 06-04-2010, 07:16 AM
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Re: Installed hybrids, now bad idle

Move #2 injector to another cylinder. If the problem follows the injector, you have a problem with said injector.
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post #6 of 10 (permalink) Old 06-04-2010, 10:43 AM
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Re: Installed hybrids, now bad idle

Tuning, tuning, tuning.
Seems 50%/50% success with single shots in Super Duties from what I have seen.
I know there are tons of guys that have done it, but I talk with people all the time that clear it up with modified tuning.
??
Well, that would be the easy solution, anyway.
Good luck.
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post #7 of 10 (permalink) Old 06-04-2010, 12:53 PM
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Re: Installed hybrids, now bad idle

Do you have the injectors seated properly? Pull the valve covers and run a straight edge on them and see if they are all the same.

Could be in injector issue but Cass is really good at what he does.

Could be tuning also.

1999.5 F-250 7.3l 4x4 6 spd Ported Heads, Head studs, valve springs, DI Push Rods, DI RR, 38R, Walbro fuel pump, 238cc Injectors from Nate @ Unlimited Diesel and Tuned by Matt @ Gearhead Automotive


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post #8 of 10 (permalink) Old 06-04-2010, 03:07 PM Thread Starter
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Re: Installed hybrids, now bad idle

Im pretty sure the injectors are seated properly. I heard them all bottom out in the cups when I tapped them in and then I torqued the hold-down, tapped them some more and then retorqued the hold-down.
I guess I will talk to my tuner first and then if the CCT problem persists, go under the covers and swap #2.
If I swap two injectors, do they both get new o-ring sets even if the o-rings were changed before I put them in the first time?
Thanks for all your help guys

Kevin

Kevin
00 F250 7.3 Ex Cab LB, 6-spd, South Bend Con-O, DP Tuning, Casserly 230/80% Hybrids, GTP38R, Reg. Return, AutoMeter Boost/Pyro/Fuel Press, MBRP 4", Napa 6637, ITP OBA, 04 Headlights, Ranch Hand Rear
04 F250 6.0 CC SB, SCT with tunes by Elite, MBRP 4", Isspro Boost/Pyro, Warn manual hubs
92 Bronco
75 Jeep CJ-5
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post #9 of 10 (permalink) Old 06-04-2010, 03:10 PM
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Re: Installed hybrids, now bad idle

No, as long as they still look good, they will be OK.




Early '99 F350 DRW, Excab, LB. Auto. 2WD, 2010 bed, 2005 headlights, 298K, on my way to 1000K.
H2E, 238 Hybrids, Adrenaline oil, Tuned by Tony. DIY Regulated Return.
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post #10 of 10 (permalink) Old 06-04-2010, 04:04 PM
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Re: Installed hybrids, now bad idle

Quote:
Originally Posted by DZL JIM View Post
Tuning, tuning, tuning.
Seems 50%/50% success with single shots in Super Duties from what I have seen.
I know there are tons of guys that have done it, but I talk with people all the time that clear it up with modified tuning.
??
Well, that would be the easy solution, anyway.
Good luck.
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