Engine swap (same size) rough idle, jumping, lagging

Tiny
NASON SOILEAU
  • MEMBER
  • 2002 DODGE DAKOTA
  • 5.9L
  • V8
  • 132,000 MILES
Have just recently done an engine swap. I have replaced all my sensors, idle control sensor, camshaft sensor, you name it I did it. Check out my vacuum hoses over and over and over PVC valve distributor plugs wires timing position sensor I have done all this a hundred times. I am now going to go and check on my grounds once again with that being said, this is what it is doing. It is idling horribly from beginning of cranking it up it does not matter if it is hot or cold. It does not matter what time of day or how long ago it was. It runs like it is missing and I cannot figure it out.
Monday, November 7th, 2016 AT 6:23 AM

2 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Try cleaning throttle plate and IAC hole with choke cleaner first then scan for codes if it is a 300-308 code then have a mechanic freeze frame it so they can check sensors. It may also be an injector or basic engine problem. These are very hard to figure out what is wrong so it is best a mechanic does it.
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Monday, November 7th, 2016 AT 6:43 AM
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Is there any codes?
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Monday, November 7th, 2016 AT 5:19 PM

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