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The TPS on a 1990 is a WOT switch.
Using a multimeter set to read resistance, or a continuity tester, check the resistance between the center and bottom terminals of your TPS with engine off and throttle closed completely.
You should read continuity (or zero ohms) between those two terminals, and if you manually open the throttle slightly, the continuity should be lost (resistance goes to infinity).
A complete test takes more time; the manual states that with a 0.016" feeler gauge between the throttle lever and the throttle stop screw, you should read continuity, which should go away if you put a 0.027" gauge in there.
With the throttle fully open ("WOT"), there should be continuity between the top two terminals of the TPS. In between the idle and WOT positions, there should be no continuity between any of the terminals
What else can I help you with?
How do you replace a tps for a 1990 Mazda miata?
To replace the throttle position sensor (TPS) on a 1990 Mazda Miata, first, disconnect the negative battery terminal to prevent any electrical issues. Locate the TPS on the throttle body, detach the electrical connector, and remove the two screws holding the sensor in place. Install the new TPS by aligning it properly, securing it with screws, reconnecting the electrical connector, and finally reconnecting the battery. Be sure to check the throttle position and adjust if necessary for proper operation.
How can you test the TPS on a 1990 Chevy 305?
There is a test procedure for that using an ohm meter. Consult a Chilton's or similar repair manual.
Where is the battery located in a 1990 miata?
On a 1991 Miata, the battery is in the trunk. It is probably the same on the 1990.
What is the horsepower in a 1990 Mazda miata have?
The 1990 model of Miata came with a 1.6L DOHC engine and produced around 120 horsepower.
What is the retail value of 1990 Mazda miata?
According to Kelley Blue Book, the estimated value of a 1990 Mazda Miata in excellent condition with approximately 150,000 miles on it is $2,400.
Where is the battery in a 1990 Mazda miata?
trunk right side.......
Does a 1990 Mazda miata have an airbag?
yes, driver only www.MX5unleashed.com
What is the correct thread size and diameter for a 1990 Miata shifter?
10mmx1.25
Where is the fuel pump located in a 1990 miata?
fuel pump is in the tank
What is the fluid capacity for the differential for a 1990 Mazda miata?
1 Quart
What engine is in the 1990 Mazda miata?
1.6 Liter Straight 4
What type of battery should be used in a 1990 Mazda Miata?
http://www.batterymart.com/p-12v-mazda-miata-battery.html this should help
