Tps Voltage
STUPID Camaro is making me nervous. (Very, very slow)?
OK, I asked this before, but I have some answers poor shooting arrows in the dark. Here's the deal. 1996 Camaro 3.8 L five-speed stick 107.000 miles. On my way to work in the morning and the way to my house at idle speed continues to rise as the engine warms. After about 8 minutes, I can drive on the highway at 61 km / h without touching the gas pedal. If I turn the ignition key, Idel speed will go back to just under 1000 rpm, then climb immediately to all by its self about 1500rpm. If I open the throttle so ever, the idle speed is around 3200rpm. Key Off button .. Back to normal for about 15 seconds. No CEL. GST good sweep full voltage range No spikes on Diag. tool. Well, it varies between "idle" yes, no, yes, no and shows position.08 I tried a tps new tps and it has worsened. No vacuum leaks, no failure, good gas, oil and all that. What causes this???
Hey Mr, U has failed to show ur coolant temp PID on data from the last time u posted this question but I do not see anything that was out of reach which is% GST throttle angle, it should be 0.1 or 0.0 No 0.4 0.0 No exceptions should be sure that the voltage always returns the same value at idle! PCM to idle the engine at a normal speed when the voltage returns to the basic GST has learned the value of idle. This is called the angle 0% gases. If the gas angle is 1% or more at idle, the PCM will assume the engine is actually out slow and increase engine speed to avoid a stall closed throttle. Note that another sensor using the same 5-volt reference that GST can temporarily occupy the low reference voltage. This will GST to send a lower base voltage at idle to the PCM, the PCM files faster than the new base voltage learned slowed. When the voltage reference returns to 5 volts, the TPS of the signal increases the voltage to its previous value. The PMC now interprets this as being idle. This will cause the angle gas to increase to 1% (or more) and the engine idling at a fast rate. 1. Monitor the throttle angle (or percent). It must always be 0% with a closed throttle. 2. If the throttle angle is not 0, the sweep sensor throttle position (TPS) output voltage signal. Check that the voltage comes back to the same value at idle. 3. Arrival of another sensor to pull the 5 volt reference low GST. 4. If the voltage GST returns always the same value, but the throttle angle does not return to 0, then the PCM is a misinterpretation of information. Is another thing that matters is the mark of the GST replaced by u know I sound like BS, but I ran into this several times in the area I highly recommend to replace the GST by one sensor is not a GM Delco AC standard or duratrash! Also make sure that nobody monkeyed with screw air flow minimum which will also cause problems! (See also PVC pipe)