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MSPNP 94-95 New Install Issues

Old 08-31-2007, 01:19 PM
  #41  
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As for the clacking sound, without hearing it it's hard to say- is it just when you romp on it? Or???

You want to be careful if you're not sure the tune is spot on-- think about it this way. That tune was spot on on my car, and has been on most other near stock cars. If it was lean enough on your car to be in the 16's at idle then it may be lean everywhere else too- and you may not be doing your motor any favors...

What do your AFR's look like?
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'95 Miata n/a
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Old 08-31-2007, 01:25 PM
  #42  
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The clacking sound is right away when I stomp on it real quick from idle in neutral. Yeah, I put the VE back to stock in that area and just kept the idle tuning.

I am still on the narrow band O2 sensor so I am not sure, but I did send you a few datalogs the other day over email if you could check them out.
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Old 08-31-2007, 01:28 PM
  #43  
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I got your datalogs, but they were from before you did a little idle tuning and sorted out the lean miss. Shoot me a short datalog with just this problem in it. Ideally wideband would be helpful-- I may not be able to see mush without it, the narrowband moves around so much, and is often not warm enough at idle to trust at all even for a rough lean/rich.
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'91 Miata BEGi S3 GT2560 w/ MSPNP - 14.1psi - 253whp, 232wtq
'95 Miata n/a
A few other cars....
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Old 08-31-2007, 02:24 PM
  #44  
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Ok, the wideband is not going to get here in time before I tear the car apart, tonight, for the turbo system. Therefore I will not have the datalog with wideband for maybe 3 weeks. The injectors wont get run until then either. Check out my build thread in the DIY section if you want to follow wlong in the next few weeks. I will be back to this post when I get the car together. Thanks for all of the help!
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