Rough idle after injectors.
Post Fiend
Joined: Feb 2006
Posts: 11,892
Likes: 2
From: Middle Tennessee
Rick, does it idle fine when first started/cold, then cams more at idle after it warms up? That was what mine did. It was pretty bad, Jody took care of most of it, though it seems it will never idle like the stock splits.
You may also find undesirable results on a rotational velocity test. We chased mine around and I gave up. Never a consistent result, failed injector did not fail when moved to another hole etc etc. Seems the test doesn't like how the single shots idle.
Which injectors did you get again?
You may also find undesirable results on a rotational velocity test. We chased mine around and I gave up. Never a consistent result, failed injector did not fail when moved to another hole etc etc. Seems the test doesn't like how the single shots idle.
Which injectors did you get again?
Thread Starter
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Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
Likes: 4
From: Grand Lake, La.
Rick, does it idle fine when first started/cold, then cams more at idle after it warms up? That was what mine did. It was pretty bad, Jody took care of most of it, though it seems it will never idle like the stock splits.
You may also find undesirable results on a rotational velocity test. We chased mine around and I gave up. Never a consistent result, failed injector did not fail when moved to another hole etc etc. Seems the test doesn't like how the single shots idle.
Which injectors did you get again?
You may also find undesirable results on a rotational velocity test. We chased mine around and I gave up. Never a consistent result, failed injector did not fail when moved to another hole etc etc. Seems the test doesn't like how the single shots idle.
Which injectors did you get again?
I got the Beans SS Stage II. Runs great while running. We did the rotational velocity after we drove it around. They were all over the place, up then down. I guess I need to call Jody. Heck I think that is the test we did. lol. Its the one where he put each injector on the screen and idled the truck and the numbers went from 0.0 to 5.4 and some went to 11.0.
Thanks for this info.
I thought of that too Brandon. I have the gray one on the truck and 2 more in the glove box. I might put on one of the others to see if that helps.
Thread Starter
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Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
Likes: 4
From: Grand Lake, La.
Rick, does it idle fine when first started/cold, then cams more at idle after it warms up? That was what mine did. It was pretty bad, Jody took care of most of it, though it seems it will never idle like the stock splits.
You may also find undesirable results on a rotational velocity test. We chased mine around and I gave up. Never a consistent result, failed injector did not fail when moved to another hole etc etc. Seems the test doesn't like how the single shots idle.
Which injectors did you get again?
You may also find undesirable results on a rotational velocity test. We chased mine around and I gave up. Never a consistent result, failed injector did not fail when moved to another hole etc etc. Seems the test doesn't like how the single shots idle.
Which injectors did you get again?
Post Fiend
Joined: Feb 2006
Posts: 11,892
Likes: 2
From: Middle Tennessee
Of course with his new chip, sending stuff back and forth is a thing of the past. He can email you stuff to try, then buy.
Post Fiend
Joined: Jun 2006
Posts: 9,714
Likes: 2
From: White Mnt's,New Hampshire
i believe Ryan builds the stage 2's for Beans..he has told me the SS will never idle as smooth as the splits..it will sound kind of like a big cam gaser at idle and the truck shouldnt shake and it should smooth out under power.....it idles smooth cold cause the oil is thicker and it keeps the injectors quiter....mine smokes when cold and stops when temps start to come up but he said thats the moded nozles doing that..how ever i have no romp..my truck has never romped running delo 400 15/40...
Post Fiend
Joined: Feb 2006
Posts: 11,892
Likes: 2
From: Middle Tennessee
Not hard to figure out what do blame that on. Mine has not romped since I switched to synthetic when I did my turbo and injectors. 100% cure for the romps if you ask me. At least for me.
Post Fiend
Joined: Jun 2006
Posts: 9,714
Likes: 2
From: White Mnt's,New Hampshire
yes he said the moded nozzles and hybrids would smoke..smells like fuel smoke..to cold to burn all the fuel up when it shoots in..if you listen close to a OBS truck..they dont idle quite as smooth as a SD does ether..does Rick know any one with a OBS to compare to??
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Post Fiend
Joined: Feb 2006
Posts: 11,892
Likes: 2
From: Middle Tennessee
yes he said the moded nozzles and hybrids would smoke..smells like fuel smoke..to cold to burn all the fuel up when it shoots in..if you listen close to a OBS truck..they dont idle quite as smooth as a SD does ether..does Rick know any one with a OBS to compare to??
Posting Guru
Joined: Jan 2004
Posts: 1,679
Likes: 0
Yeah I have the exact same symptoms. I think that a live tune would take care of it. I switched back and forth between my hypermax chip and my dp for a while to do some testing. . . the hypermax chip idled smooth as a dmax. . . . kinda scary. . . but kinda nice at the same time. However I kinda like the rocking it does with the dp I'm sure with live tuning Jody could get mine to idle just as well as hypermax.
Timmy
I'm sure with live tuning Jody could get mine to idle just as well as hypermax. Timmy
Thread Starter
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Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
Likes: 4
From: Grand Lake, La.
I understand the cam idle, that is not bad. It's just when I am driving and the truck is at temp, if I slow down or stop, the idle is a lot rougher then when I let it idle for a while. The whole truck shakes when at a stop after driving then stop. When I get home, I let the truck idle in my shop and in a few mins it get better, like the cam idle. You can hardly see the engine move.
I tried to call DP, but they won't be back in the office till the 16t
If you guys think a different oil will help, I will try that. I now run dino Rotella T 15w40.
I tried to call DP, but they won't be back in the office till the 16t
If you guys think a different oil will help, I will try that. I now run dino Rotella T 15w40.
Lead Driver
Joined: Jan 2006
Posts: 7,308
Likes: 250
From: Hartford, WI
Maybe but I doubt it is worth it for the little bit of better you will get, if any at all.
Posting Guru
Joined: Jan 2004
Posts: 1,679
Likes: 0
I understand the cam idle, that is not bad. It's just when I am driving and the truck is at temp, if I slow down or stop, the idle is a lot rougher then when I let it idle for a while. The whole truck shakes when at a stop after driving then stop. When I get home, I let the truck idle in my shop and in a few mins it get better, like the cam idle. You can hardly see the engine move.
I tried to call DP, but they won't be back in the office till the 16t
If you guys think a different oil will help, I will try that. I now run dino Rotella T 15w40.
I tried to call DP, but they won't be back in the office till the 16t
If you guys think a different oil will help, I will try that. I now run dino Rotella T 15w40.
Timmy
Thread Starter
|
Hook it, I'll pull it.
Joined: May 2007
Posts: 15,037
Likes: 4
From: Grand Lake, La.
Like i said. . . sounds identical to my symptoms. . . Pull it out of gear sometimes coming to a stop. . . idles super smooth. . . let it sit there for a few seconds and it starts to rock again. Sometimes it always rocks. . . sometimes it won't for a while. With my hypermax chip. . . . it never ever did it.
Timmy
Timmy
I will see if I can do a few things to see if I can get it to act better. I guess I may have to live with this.
But when you hit the pedal.
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