Can a bad TPS cause idle surge?

Can a bad TPS cause idle surge?

A failing TPS can cause the engine to search for an idle or surge. This is most noticeable when at idle, when on the highway with the cruise control set, or when keeping the throttle steady with your foot.

What should I do if my Honda Passport is having problems?

I have a 1996 Honda passport and have noticed that the alternator and or battery is the suspected electrical problems in most Honda Passports and you should loosen the alternator; then make sure the electrical plug is properly and tightly plunged into the alternator. If this doesn’t help go to auto zone and they will check your alternator for free.

What is the problem with my 97 Passport?

My ’97 Passport appears to have some weird electrical problem. At random times, the battery indicator will start to move in sync with the turn signal or show a drop with any other pull on the battery (lights, radio, etc.).

Why does my Honda idle all the time?

Please try again later. This is 1 of the common issues with a Honda. Its called the FITV (Fast idle thermal valve) Its a simple little thing like this that can cause a lot of idle issues, Such as, Idle bouncing around, Idle surge, It can also cause a high idle. Its a simple little fix and could save you alot of money in the long haul.

How to fix Honda idle issue ( FITV )?

Its called the FITV (Fast idle thermal valve) Its a simple little thing like this that can cause a lot of idle issues, Such as, Idle bouncing around, Idle surge, It can also cause a high idle. Its a simple little fix and could save you alot of money in the long haul. I clean my out every so often just to be sure it’s still functioning properly.

Why does my Honda car run at high idle?

So the computer tries to compensate by adding fuel. That increases the idle speed. Knowing that the accelerator isn’t being applied (by reading the throttle position sensor) the computer sees a high idle as a problem and commands the idle air control valve to close. That makes the engine run worse.

How to test the fast idle valve on a Honda?

3) Once the engine coolant is above 90 degrees F, you can proceed to test the fast idle valve. Start the engine and remove the vacuum line on the lower portion of the throttle body. Check for vacuum. There should be NONE.

How to fix a surging idle on a Honda?

How to fix a surging idle on Honda vehicles 1) Start by making sure the cooling system is filled with coolant and there’s no air in the system. If it’s low on… 2) Remove the air duct from the throttle body. Then start the engine and cover the throttle body with a solid object… 3) Once the engine

Where is the idle air control valve on a Honda?

5) Finally, check the idle air control valve. There’s a port in front of the throttle plate. That port feeds the idle air control valve and the base idle screw.