89 200q MC2: code 2322

[Richard J. Andrews]

you might try disconnecting your 02 sensor and see how that does...
i am assuming you have all of the fuses in the right places...
there are a couple or one can't remember that look like it's a spare
holder but it is indeed for the ecu/timing...

check your static timing (belt)
should like up in the window of the valve cover...
and there should be a 0 as i recall in the bellhousing..
if your timing belt is off one tooth this would happen as well..

HTH!
-rich
'86 4kq
At 12:20 PM 1/16/01, you wrote:
>My newly purchased 200q (274k miles) is running like a$$.  Crappy
>performance, crappy mileage, just plain crappy.  It got new plugs (W7DTC),
>cap, rotor, air and fuel filters, injector/inserts/seal, throttle switch
>this weekend.  Plug wires look near new.  Mixture was adjusted down to a
>duty cycle around 48% or so.  It ran mediocre prior to the new part
>installation, worse afterwards.  It has a lope/stumble at idle (~950rpm) and
>the roll into throttle response is horrible.  Sputters and lags badly.  It
>will build 1.3bar indicated, but does so slowly, and is not wont to climb
>to/above 5000 rpm.  After a code dumping prep run, I get a 2322 for Air
>Intake Temp sensor.
>
>The intake air sensor checks out at ~500ohms at the sensor, and ~545 from
>pins 23 & 24 at the brain (if I recall the pinout correctly).  On leg of the
>wiring, brain to sensor shows approx 0 ohms.  The other leg has the extra
>resistance near to the sensor.
>
>
>Testing fuel pressures showed control pressures are a little high.  I
>swapped four different CPR in and out, and the best CPR gave readings
>similar to below.  Prior to swapping, control pressures were ~59 and 89
>respectively for cold/warm.
>System pressure: 95psi
>Cold Control Pressure: 30psi
>Warm Control Pressure: 59psi
>
>So my questions are:
>What is the preferred fix for the Air Intake Sensor?  Cut back an inch or
>two on the harness, clean/prep the sensor contact pins and solder the fresh
>wire ends to the sensor?  Grind off the welded connection at the sensor and
>use small female crimp terminals to attach the fresh wire ends to the
>sensor?  Just rework the one questionable wire??  Suggestions?
>
>What should I be looking at to correct the stumbling performance problem?
>I'm looking to source other control pressure regulators, in hopes that one
>might provide in spec control pressures.  I'll plan on an Oxy sensor and new
>wires next weekend or so.
>
>Any insights or repair suggestions greatly appreciated.  This car could
>begin to grow on me, but not in it's current running state.  Help please.
>
>
>Thanks!
>-S
>
>Stott Hare
>85 Callaway 4ktq     89 200q     89 100q