Question about 1997 Hyundai Elantra
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Posted on Jan 02, 2017
Code P1624:M52 coolant temperature below thermostat regulating temperature. Check the temperature of the coolant and also with a scan tool, check the actual reading given by the coolant temperature switch. It could be the thermostat or a coolant sensor.Look also for any broken/corroded wires to the sensors as well.
Posted on Apr 18, 2009
DTC P0734 is "4th gear incorrect ratio" - that's your torque converter 'LOCK UP Clutch" It's worn out (or you're using the wrong Trans Fluid required by Hyundai - SPIII OR Both). The P1624 is simply the Trans Control Unit (computer) communicating to the Engine Control Module (ECM computer) MIL - on request signal to ECM = asking it to turn on "Check Engine" light. MIL = Malfunction Indicator Lamp. When the torque converter 'lock up" clutch slips or doesn't engage, the trans automatically returns to 3rd gear and stays there (it's called 'fail safe' mode) until you cycle the ignition key, then everything resets until the malfunction occurs again.
You'll need to have an AT (Automatic Transaxel) tester hooked up to verify this. Hyundai has a Service Bulletin specifically for "gear incorrect ratio' codes. If when you changed the trans fluid, was it done at a Hyundai Service Center? If not, someone may have installed the wrong fluid.
Posted on Jun 02, 2009
P0139 HO2S Circuit Slow Response (Bank 1 / Sensor 2). This is the downstream sensor (after the catalytic converter). Odds are the sensor is going bad. Check connections/ connector to this sensor. If you don't find any problem/trouble with this connector, replace the O2 sensor.
Posted on Jul 18, 2009
Did you use a aftermarket O2 sensor or a genuine Hyundai one? If it's an aftermarket one it may be bad or not as good as the OEM one. See here for more details and other potential causes: P0133
Posted on Feb 11, 2010
P2626 O2 Sensor Pumping Current Trim Circuit/Open (Bank 1 Sensor 1)
I'll sure this has to do with a faulty O2 sensor. This sensor is usually located around the header of your car, or down more on your exhaust.
Try disconnecting your battery for 30 mins, hook it back up, and start your car again. This will erase the error. See if it comes in again.
Hope this help (remember rated this post).
Posted on Mar 25, 2010
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