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-   -   Bad injectors? (https://www.miataturbo.net/diy-turbo-discussion-14/bad-injectors-10881/)

rotaryjunky 06-28-2007 06:16 PM

Bad injectors?
 
I finally got a day to myself, at least a couple of hours without moving stuff or medical tests, so I swapped in these injectors:

http://cgi.ebay.com/ebaymotors/ws/eB...m=290114059918

Install went great, no leaks, but the car barely ran and my LC1 showed extremely lean. What could I have done wrong?

I reinstalled my old injectors and the car is back to normal. I just want to run lower fuel pressure for my 8psi.

greenday3437 06-28-2007 06:33 PM

What kind of engine management are you running?


Originally Posted by rotaryjunky (Post 127169)
I finally got a day to myself, at least a couple of hours without moving stuff or medical tests, so I swapped in these injectors:

http://cgi.ebay.com/ebaymotors/ws/eB...m=290114059918

Install went great, no leaks, but the car barely ran and my LC1 showed extremely lean. What could I have done wrong?

I reinstalled my old injectors and the car is back to normal. I just want to run lower fuel pressure for my 8psi.


rotaryjunky 06-28-2007 07:18 PM

Old school bandaids, BEGI FMU and 190 fuel pump.

rotaryjunky 06-28-2007 07:52 PM

I've got the FMU on max and I am still only getting 11.75 afr's at 8psi. I may need to calibrate my LC1, not sure.

magnamx-5 06-28-2007 08:50 PM

11.75 is frigin rich as hell try 12.3 or so. you are way to rich at 11.75 to make any real power.

rotaryjunky 06-28-2007 09:27 PM

I was just out running the car and noticed two things.

1st, with the fmu all the way tightened, it holds the fuel pressure (when pumped up with a hand pump) and doesn't go down. If I loosen it a few turns (to run a little leaner anyways), it bleeds off the pressure and I keep having to pump it to keep it up (hmmm..). So I am assuming I should not be running it turned all the way in.

2nd, I noticed a knocking sound down low, sounds like a train hitting the connections in the tracks. I am really not happy about this. Rod knock? The car only has 31K. How long do I have before catastrophic failure? I just really wanted to take this car on a few trips this summer.
(Edit: Just ran it again and its not so bad, its intermittent and might be valve related, we'll see. I don't care, I will push it around the track. Too much to do to the civic to track it, 217k mile honda crap.)


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