Do you have to warm up the engine before disconnecting the IAC?

Do you have to warm up the engine before disconnecting the IAC?

Start the car and let it warm to operating temperature. The down side to this is the heat emitted from the engine as you try to disconnect the IAC in the following instructions. But, the engine has to be warmed up. Sorry. Use a jumper wire to ground the “Test” terminal on the ALDL connector.

How do you set the idle speed on a Torx?

Set the idle speed to specifications, rotating the torx screw clockwise to raise RPM, and counter-clockwise to lower RPM. Once again, the desired RPM and needle were highlighted for ease of viewing.

What’s the minimum idle speed for a 1988 350?

For the car we are using (1988 350 AT), the minimum air or idle speed should be a 400 RPM. I highlighted the needle on the RPM gauge as well as marked what the goal for this vehicle should be at (400 RPM). If the speed is off, there is a torx screw on the side of the throttle body on the driver’s side.

What was the problem with my 1988 IROC Z 350?

My 88 Iroc-z 350 did the exact same thing. It does it every now and then. Every once in a while it would get so bad that it stalled, throwing the check engine light on. I took it to the garage, and they said that they got a mass air flow trouble code, but they couldn’t find the exact problem.

What happens when fuel injectors are not working?

The engine does not make power. Engine does not want to start. Clogged fuel injectors diagnostics. Diagnosing dead or clogged fuel injectors is difficult because it acts the same than a bad coil, dead spark plug, broken spark plug wires and or electrical problem.

Why does my IROC Z 305 Ping so much?

You will get some pinging due to no EGR flow, but if the idle or just off idle improves, the EGR is opening too fast due to carbon buildup inside the valve and must be replaced.

How does an ultrasonic fuel injector RX work?

Injector RX uses manufacturer approved equipment and an ultrasonic fuel injector cleaning process to clean fuel injectors. Once cleaned the fuel injectors are flow tested to confirm that they spray correctly and deliver the right amount of fuel.