Question about 1996 Chevrolet Suburban
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Posted on Jan 02, 2017
P1192 Post-catalyst Fuel Trim System Bank 1
Check your Oxygen Sensor Heater Circuit, could be dirty or loose wires or just stop working. Usually you have 4 of these under your car so check all.
Fault Code P0700
Here's what my service manual says:
EATX Controller DTC Present
This SBEC III or JTEC DTC indicates that the EATX or Aisin controller has an active fault and has illuminated the MIL via a CCD (EATX) or SCI (Aisin) message. The spscific fault must be acquired from the EATX via CCD or from the Aisin via ISO-9141.
Here's what I know: MIL=malfunction indicator light; DTC=diganostic trouble code; CCD=Chrysler collision detection. Beyond that, I'm clueless. Sounds like it needs to be read out at the dealer. Then again, if it was a one-time glitch, it might clear itself after several drive cycles.
Posted on Feb 18, 2010
Replace the transaxle or see if it can be rebuilt. Those transaxles have incorporated electronic solenoids that can fail causing the codes to appear as you described. One thing you might check prior to getting it rebuilt or replaced is have the computer checked and check all of your wiring connections. Anytime you have a wiring connector on the exterior of the vehicle you can get corrosion issues it may be simply cleaning the connectors, placing dielectric grease on them and reattaching. Before cleaning any connectors always disconnect the negative battery terminal.
Posted on Jan 14, 2011
Unless you use a scan tool to clear the fault, it will not go away by itself until 40 consecutive warm up cycles have been completed without a fault. You can go to Autozone and they will clear the alarm for you. You can also clear it by disconnecting the PCM ( powertrain control module ) battery feed.
If the alarm returns after they've cleared it, the problem still exists. If the old EGR valve showed signs of excessive heat on it, check the exhaust system for blockage. The catalytic converter may be blocked.
Posted on Mar 30, 2011
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