Question about 1994 Toyota Pickup

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4 cyl, Engine dies when idling,sometimes. Problem is not consistant. Also can hear a clicking like a set of points opening and closing when it is acting up. No warning lights come on.

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What you're looking for is the circuit opening relay-If you're not getting power to the fuel pump try blocking the air vane flap in the airflow meter and see what happens

See if there is a relay that looks like this4 cyl, Engine dies when idling,sometimes. Problem - j_chris_ward_14.jpgand secondly check to see if the sound is coming from the injectors they can click too.j_chris_ward_15.jpg

Posted on Mar 17, 2011

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2 Answers

I need to know the actual gap to set the points.


depends on engine and # of cylinders.

Mar 19, 2015 | Cars & Trucks

Tip

Throttle Position Sensors on engines


1.3) TPS - Throttle Position Sensor

What is it? This is an electrical device that detects the position of the throttle plate.

Where is it located? The TPS is found on the exterior of the throttle body on the opposite end of the throttle shaft to the accelerator linkage arm. It usually consists of a small black plastic unit with an electrical connector attached to it.

How does it work? The TPS is a variable resistor madeup of an arc shaped carbon track with an applied voltage of 0 to 5 volts along its length and a sliding contact that picks up the voltage at any point along it. The device has three electrical connections, two provide the voltage range along the carbon track and the third (most often the middle connection) sends a voltage to the ECU in accord with the position of the sliding contact point on the arc. This siding contact arm is attached to the end of the throttle shaft. As the throttleshaft rotates, opening and closing the throttle plate, the sliding contact sweeps up and down the carbon track providing voltage readings to the ECU; 0 volts for closed to 5 volts for fully open.
When the engine is at idle the TPS output should signal the ECU that the throttle is closed (low volts) and therefore the ECU should either open the Idle Air Control (IAC) valve or (on some engines) engage the idle speed control motor to maintain the engine idle speed. Sometimes a micro contact switch on the throttle body exterior associated with the throttle shaft is used to detect and confirm when the throttle plate is fully closed.


NEXT 1.3b) TPS faults and how to fix

on Jul 15, 2011 | Mercedes-Benz E-Class Cars & Trucks

1 Answer

Car starts but wants to die out right away have to play with the gas padle


A 1986 Mustang with a 4 cyl engine should have a carb and a choke. It sounds like the choke is not closing and-or the fast idle cam is not raising the idle speed until the choke opens.

Feb 02, 2013 | Cars & Trucks

2 Answers

Having vacuum problems


check the vacuum line that goes to the fuel pressure regulator,pull the vacuum line off ,if there is fuel in the line ,the regulator has ruptured.

Jan 01, 2012 | Ford Cars & Trucks

1 Answer

I have 1992 RS Camaro 25th anniversary I replace spark plug /wires, distributor cap and rotor, oil filters, air filter, vaccum hose,fuel sensor, idle speed sensor, but when Idle the car run good but when I...


First off, some people hate to hear it but if it ran fine before you did this work, go back over what you did.

What fuel sensor and idle speed sonsor did you replace? Could you mean the IAC (Idle Air Control) and TPS (Throttle Posistion Sensor)? Both of these are adjustable.The Pridle in the IAC has to be measured and set to specific length and the TPS has to be set to a specific voltage with the throttle closed.

Now you could also have an EGR that is getting stuck open. The EGR is meant to open when the throttle os open AND at speed. If its got carbon build op causing it to not close all the way then it would die when you lift off the throttle.

Aug 01, 2011 | 1992 Chevrolet Camaro

2 Answers

It runs rough sometimes it dies, I have tuned it up , plugs dist cap, wires rotor the computer , It has very poor gas milage .it has a 2300 with automatic trans,


have the intake gasket checked. spray carb/choke cleaner around intake gasket and if rpms change then you have a bad gasket which causes rough idle bad fuel econ

Apr 09, 2011 | Ford Ranger Cars & Trucks

1 Answer

1966 ford f100 inline 6 cyl 300\r\engine turns


Make sure that the primary wire between the distributor ignition points and ignition coil is not damaged anywhere and grounding the circuit out. This is not a ground wire.

Replace the ignition points condenser, if this is shorted your points will never be able to work. With the condenser removed, use an ohm meter to check the resistance between the end of the condenser wire and the condenser caseing, there should be infinite resistance or an open loop, but it should not show any kind of a connection between the two, or it is grounded or "shorted to ground" and it will prevent the ignition system from working.

Are the ignition points adjusted properly? They have to open and close to send a dwell signal to the coil.

Connect a test light to ground and on the NEG. (-) side of the coil, have someone crank the engine and look for the test light to flash, the test light should flash indicating a dwell signal or coil pulse. (Do not use the POS. + side of the coil for this test, because you will not get a dwell signal).

If no dwell signal, then...

1. Turn off ignition and remove the distributor cap and turn the engine over until a high spot on the distributor cam lobe is on the rubbing block on the ignition points.

This is the fully open position for the ignition points and where they need to be to set them. and if you do not know the feeler gauge size, or the dwell angle to set your points at (according to manufacturers specifications), then tear off a piece of a match book and place it between the two point breakers.

2. Loosen the point hold down adjusting screw and move the base of the points with a screwdriver (look for adjusting nothches), until there is a light drag felt pulling on the match book. For the newer GM's up to 1974, just use a 1/8 allen wrench to obtain the same light drag on the match book.

3. Remove the matchbook and there should still be a small gap between the point breakers, rotate the engine and you should see the points open and fully close.

4. Pull the coil wire out of the distributor cap and ground the end of the coil wire well or you might get shocked.

5. Have someone crank the engine and re-check for a dwell signal, you should also see a blue-white spark flashing between the point breakers as they open and close.

If you now have a dwell signal then replace the distributor cap back onto the distributor and the the coil wire back onto the distributor cap, the engine should now start.

If you did not grease the rubbing block of the ignition points with die-electric grease when you installed them, then the rubbing block on the points will wear down prematurely, the points will close down, and the engine will no longer start.

If you crank your engine over and the ignition rotor turns clockwise (looking down at the rotor) then you need to put the die-electric grease along the right side of the rubbing block edge (looking down at the points) so that the grease is trapped between the points and the distributor cam lobe, and the distributor cam lobe can pick up the grease. (Grease the left side of the rubbing block edge if the ignition rotor turns counter-clockwise). Only use die-electric grease.

Apr 19, 2010 | 1981 Ford F 100

2 Answers

'84 porsche 944 cranks, chokes and dies


check your air filter sounds like it is starved for air possibly

Apr 06, 2010 | 1984 Porsche 944

1 Answer

1994 toyota camry 4 cyl start and then dies if i dont press accelerator


It's possible this is a malfunction of the Idle Air Control valve. The valve's job is to open and let air in at idle when the throttle is closed. If it stays closed the mix is too rich and the engine dies. The problem could be due to the valve itself, or the valve wiring and harness. The valve is bolted to the back of the intake manifold. You may need to remove it to diagnose. Or

Another possibility is that the engine is not getting enough fuel due to clogged lines or fuel filter or injectors. Use a fuel additive to clean out the lines.

Another possibility is the Throttle Position Sensor. This is attached to the front of the throttle. Check that it is attached securely and its wire harness is secure.

Feb 23, 2010 | 1994 Toyota Camry

5 Answers

Ford 351W


I agree, jumped timing. Check to make sure the dist is tight. Than check for tdc on the #1 cylinder. When the #1 cyl is TDC the rotor should be pointing to that wire on the cap. Take the cap off while checking. Also is easier to turn motor by hand without plugs in motor.

Jul 29, 2008 | 1966 Ford Mustang

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