Took my 10AE to dealer to diagnose bad idle...
#26
both actually
the mechanic idle is set with the throttle plate screws by the firewall. it should be 725-750 with the initial set coupler jumpered
the bac is there to kick up the idle under load (ie p/s pump turning, a/c on, etc) without the mechanical idle set properly the bac can't no matter how hard it tries hold a proper idle.
the mechanic idle is set with the throttle plate screws by the firewall. it should be 725-750 with the initial set coupler jumpered
the bac is there to kick up the idle under load (ie p/s pump turning, a/c on, etc) without the mechanical idle set properly the bac can't no matter how hard it tries hold a proper idle.
#27
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Generally what happens if the mechanical idle is set too low- the idle will fall below 750 (sometimes WAY below 750), then bounce (or surge) back up past 750 (because the BAC goes wide open to keep the engine from stalling), then the process repeats itself, over and over, forever and ever ![Smilie](https://www.rx7club.com/images/smilies/smile.gif)
If the engine dies when the initial set coupler is jumpered, the idle is set WAY to low. For some reason, my idle adjust screw would move this direction on its own (engine vibrations?) and I'd have to reset it again. Little dob of RTV fixed that...
![Smilie](https://www.rx7club.com/images/smilies/smile.gif)
If the engine dies when the initial set coupler is jumpered, the idle is set WAY to low. For some reason, my idle adjust screw would move this direction on its own (engine vibrations?) and I'd have to reset it again. Little dob of RTV fixed that...
#29
DONT FEED THE NOOBS
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ha just take it away from the mazda dealer asap........ you might as leave your car in a 9th grade autoshop class or in a chop shop.. but then again the kids might be better than most mazda dealers......
#30
changing the harness is not by far a difficult job if you really wanted to make sure it wasn't just wiring buy a new harness and put it on its not like like a piston engine where theres tons of connectors and you can mix up this one with that one and blah!!!!!!!!!!! lolI changed mine peice of cake just remember the ground wires and also it will never go back in the way it came out as long as you have hooked everything up right and its not blocking motion of something mechanical then your good
#31
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[QUOTE=WAYNE88N/A]Generally what happens if the mechanical idle is set too low- the idle will fall below 750 (sometimes WAY below 750), then bounce (or surge) back up past 750 (because the BAC goes wide open to keep the engine from stalling), then the process repeats itself, over and over, forever and ever ![Smilie](https://www.rx7club.com/images/smilies/smile.gif)
QUOTE]
ummmm......that sounds familiar
![Smilie](https://www.rx7club.com/images/smilies/smile.gif)
QUOTE]
ummmm......that sounds familiar
#33
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Originally Posted by WAYNE88N/A
For some reason, my idle adjust screw would move this direction on its own (engine vibrations?) and I'd have to reset it again. Little dob of RTV fixed that...
If it's removed or mis-adjusted the stop screw will pein a hole in the aluminum stop.
#34
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Originally Posted by djpacman
... just wiring buy a new harness and put it on ...
![Frown](https://www.rx7club.com/images/smilies/frown.gif)
Sorry for thread jacking.
#35
Originally Posted by bingoboy
you have a part number for those o-rings? i could use one ![Big Grin](https://www.rx7club.com/images/smilies/biggrin.gif)
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A new wiring harness would be a great thing for almost any older FC.
My S4 TII harness looked pretty good but I have stripped away wires which are atleast 2 ft from open ends and it is completely oxidized and corroded.
This is where I found most of my hesitation and fuel problems.
I would love to buy a new harness but I don't want to spend more than $200. Anythign over and I woudl rather consider an EMS like Microtech or Haltech
#36
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Originally Posted by bingoboy
you have a part number for those o-rings? i could use one ![Big Grin](https://www.rx7club.com/images/smilies/biggrin.gif)
![Big Grin](https://www.rx7club.com/images/smilies/biggrin.gif)
It's an odd part number, but 99541-01601 is what you need. And you need two of them. The dealer can find them on "1-H,7" of the fische. That's the oil pump and filter section.
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The1Sun
1st Generation Specific (1979-1985)
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09-18-15 07:13 PM