Weird miss - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 11 (permalink) Old 10-08-2011, 12:12 AM Thread Starter
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Weird miss

I have a 97 psd 5 speed with a ts 6 position chip with s&b intake. Well the truck its self idles fine and runs great but say I'm driving in third and about 1400rpm and get on it the truck just shutters like a miss and like 5psi of boost and I let off some and get back on it builds boost and takes off it will do this too if I'm driving and do about 75% throttle but worse when I floor it of course but I just can't figure out what it is I got good fuel pressure oil pressure everything checks out some school me lol
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post #2 of 11 (permalink) Old 10-08-2011, 09:20 PM
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Re: Weird miss

ive got a similar problem with my truck also, but i have an auto and my truck shutters a bit whenever you lay into the pedal real hard......hopefully someone chimes in
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post #3 of 11 (permalink) Old 10-09-2011, 03:51 AM
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Re: Weird miss

Any codes?

2015 Challenger HellCat Redline Red 8sp
1997 F350 4X4 CCLB PSD
2004 Jetta TDI
1999.5 Jetta TDI 11mm pump S7 PP764's 3bar MAP
1986 F350 CC Dually 6.9 ATS turbo lowered
1984 Mark VII 2.4 BMW Turbo Diesel
1970 Roadrunner 383 4sp
1970 Cuda 426 4sp Dana 60
1956 F100
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post #4 of 11 (permalink) Old 10-09-2011, 03:54 AM Thread Starter
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Re: Weird miss

Nope no codes at all I have a snap on scanner I even drove with it on my truck and everything perfect
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post #5 of 11 (permalink) Old 10-09-2011, 11:05 AM
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Re: Weird miss

Quote:
Originally Posted by Rollin97 View Post
Nope no codes at all I have a snap on scanner I even drove with it on my truck and everything perfect
Have you done a cylinder contribution test?

2015 Challenger HellCat Redline Red 8sp
1997 F350 4X4 CCLB PSD
2004 Jetta TDI
1999.5 Jetta TDI 11mm pump S7 PP764's 3bar MAP
1986 F350 CC Dually 6.9 ATS turbo lowered
1984 Mark VII 2.4 BMW Turbo Diesel
1970 Roadrunner 383 4sp
1970 Cuda 426 4sp Dana 60
1956 F100
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post #6 of 11 (permalink) Old 10-09-2011, 05:43 PM Thread Starter
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Re: Weird miss

Everything shows good. You think it could be the ebpv
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post #7 of 11 (permalink) Old 10-09-2011, 11:37 PM
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Re: Weird miss

No, I don't see how the EBPV could to that. Look at all the connections at the valve covers. How does it start and run cold? how many miles on the injectors?

2015 Challenger HellCat Redline Red 8sp
1997 F350 4X4 CCLB PSD
2004 Jetta TDI
1999.5 Jetta TDI 11mm pump S7 PP764's 3bar MAP
1986 F350 CC Dually 6.9 ATS turbo lowered
1984 Mark VII 2.4 BMW Turbo Diesel
1970 Roadrunner 383 4sp
1970 Cuda 426 4sp Dana 60
1956 F100
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post #8 of 11 (permalink) Old 10-10-2011, 05:08 AM
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Re: Weird miss

I have been battling this same problem for months. put a new IDM in today and can't get it to stumble...
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post #9 of 11 (permalink) Old 10-10-2011, 07:43 PM Thread Starter
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Re: Weird miss

The truck starts and idles like a bran new truck but we have owned it since 2000 and it has 360k and only two injectors have been replaced
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post #10 of 11 (permalink) Old 10-10-2011, 07:53 PM
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Re: Weird miss

mine would not do it 100% of the time, but most of the time it did. If you tried to get on it, it would stutter and stumble from about 1500-2000, than it would come on like a race horse. Its a 5 minute job to hook up a different IDM and test it if you can find someone with a good IDM that you can borrow..
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