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Betty the Black E21 BMW 320i
#81
The manifold heat shield bolt holes had rusted out, so I welded some washers on and painted it.

Also finally bit the bullet and installed a cheap head unit. Huge upgrade. The stock one wasn't outputting a good signal to the left side of the car and was barely driving any of the speakers at all.

The wiring in this car is super old school. Only a left channel and a right channel out of the head unit and it's all a shared ground.

Also swapped injectors and the car is running even worse. Hopefully new injector seals will solve any issues. If not, I'll buy some new injectors. If that doesn't help, I may run the car by EAD Motors and see if they have any tools to help me determine what my issue is.
[Image: 1e3243cf2b8864d9320f36de6afa3333.jpg][Image: 940921b1055d7ccf3532245843bdf716.jpg]

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Current:
2011 F150 Platinum | 1995 BMW 325i 1983 BMW 320i  The MMoped | 2008 BMW 128i
Past:
1996 Toyota Tacoma: | 1992 Mazda Miata | 2002 BMW 325i |
2003 Toyota Tacoma | 1995 Miata M Edition | 1997 Subaru Outback |
1992 Mazda Miata | 1990 BMW 325i  | 2007 Toyota 4Runner | 
1995 Ford Windstar 1987 BMW 325i | 1987 BMW 325 | 1990 BMW 325i Vert |
2018 VW GTI | 1990 Mazda Miata | 
1989 BMW 325i Vert 2015 Fiesta ST | 1983 BMW 320i parts car
  Reply
#82
I swapped ignition coil, ignition module, and all of the injectors around and only made the issue worse. I think of the 8 injectors I have, at least 6 are leaking. Time for rebuilds!

My roughly prioritized list for what I want to fiddle with next?


Get AC working
Battery relocate with rear shock tower brace
H&R lowering springs
New shocks
Get the engine running 100% (warm up regulator, frequency regulator, new injectors, tune fuel mix, get ignition timed)
Valve adjustment
Oil pan gasket
Control arms
Engine mounts
Revert to stock transmission mount (too buzzy)
Shifter rebuild? (Feels fine)
Replace all fuel lines
New hard lines for fuel accumulator
Rebuild fuel accumulator
Repaint wheels
PDR
Get sunroof 100% fixed so I never have to worry about it again (may not be possible?)
New headliner
New carpet
New Dash
New Blower Motor bearings
New windshield
Deep cleaning/detail of underside and engine bay
Euro Bumpers ($$$$$)
Source tan recaros (Steal from Dave's 02)
Source LSD
Source rear sway bar
Current:
2011 F150 Platinum | 1995 BMW 325i 1983 BMW 320i  The MMoped | 2008 BMW 128i
Past:
1996 Toyota Tacoma: | 1992 Mazda Miata | 2002 BMW 325i |
2003 Toyota Tacoma | 1995 Miata M Edition | 1997 Subaru Outback |
1992 Mazda Miata | 1990 BMW 325i  | 2007 Toyota 4Runner | 
1995 Ford Windstar 1987 BMW 325i | 1987 BMW 325 | 1990 BMW 325i Vert |
2018 VW GTI | 1990 Mazda Miata | 
1989 BMW 325i Vert 2015 Fiesta ST | 1983 BMW 320i parts car
  Reply
#83
Current:
2011 F150 Platinum | 1995 BMW 325i 1983 BMW 320i  The MMoped | 2008 BMW 128i
Past:
1996 Toyota Tacoma: | 1992 Mazda Miata | 2002 BMW 325i |
2003 Toyota Tacoma | 1995 Miata M Edition | 1997 Subaru Outback |
1992 Mazda Miata | 1990 BMW 325i  | 2007 Toyota 4Runner | 
1995 Ford Windstar 1987 BMW 325i | 1987 BMW 325 | 1990 BMW 325i Vert |
2018 VW GTI | 1990 Mazda Miata | 
1989 BMW 325i Vert 2015 Fiesta ST | 1983 BMW 320i parts car
  Reply
#84
[Image: 0uOSg2o.jpg]

[Image: bnNDdkK.jpg]

[Image: lLtf2ay.jpg]

[Image: gbQebPq.jpg]
Current:
2011 F150 Platinum | 1995 BMW 325i 1983 BMW 320i  The MMoped | 2008 BMW 128i
Past:
1996 Toyota Tacoma: | 1992 Mazda Miata | 2002 BMW 325i |
2003 Toyota Tacoma | 1995 Miata M Edition | 1997 Subaru Outback |
1992 Mazda Miata | 1990 BMW 325i  | 2007 Toyota 4Runner | 
1995 Ford Windstar 1987 BMW 325i | 1987 BMW 325 | 1990 BMW 325i Vert |
2018 VW GTI | 1990 Mazda Miata | 
1989 BMW 325i Vert 2015 Fiesta ST | 1983 BMW 320i parts car
  Reply
#85
Still chasing this hot start issue and popping from the exhaust. I ordered new injectors and a tool to adjust the fuel trim. Without the lambda sensor plugged in, my O2 readings bounce between .3 and .7 a volt with .45 being stochiometric, so I believe this is correct as the frequency valve should be operating at the default duty cycle. Even with this, I still get a pretty rhythmic "pop" out the exhaust like it's running too rich or lean at idle and I get a "pop pop pop" when decelerating in gear. This could either mean too lean or too rich. I can not find any vacuum leaks and I've replaced a lot of hoses.

I'm getting a cold start injector cleaned right now, so that's my next course of action. After that, I may replace fuel lines to see if they are sucking air. Beyond that, maybe I'll try to replace the fuel accumulator (not sure how yet since this part is NLA) and replace the fuel filter again since I replaced it when I got it running again, but I assume i've shaken up a good bit of 30 years of dirt and rust from the tank at this point.

I've got spares of the WUR and some other fuel system parts that I may swap around, but I want to be sure I'm methodical with this. The car runs and drives fine after all, I can just tell something is wrong from the sound of the exhaust and the hot start issues. Other than that, it's fine, and I'm not sure those two are related.
Current:
2011 F150 Platinum | 1995 BMW 325i 1983 BMW 320i  The MMoped | 2008 BMW 128i
Past:
1996 Toyota Tacoma: | 1992 Mazda Miata | 2002 BMW 325i |
2003 Toyota Tacoma | 1995 Miata M Edition | 1997 Subaru Outback |
1992 Mazda Miata | 1990 BMW 325i  | 2007 Toyota 4Runner | 
1995 Ford Windstar 1987 BMW 325i | 1987 BMW 325 | 1990 BMW 325i Vert |
2018 VW GTI | 1990 Mazda Miata | 
1989 BMW 325i Vert 2015 Fiesta ST | 1983 BMW 320i parts car
  Reply


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