Intermittent hard starting

Hi,

The ECM is in control of the fuel injection. Have you checked connections to make sure nothing is damaged, loose, or corroded? It's odd that it would work on and off as described.

Also, have you scanned the computer to determine if there are diagnostic trouble codes indicating where the problem is starting? If you haven't and the check engine light stays on when the engine is running, have that done. It may be very helpful.

Here is a link showing how it's done:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

I realize most people don't own a scanner, but often times a parts store will do it for you free of charge.

Let me know what you find or if you have other questions.

Take care,
Joe

Have you checked the MFI relay? See pic below. The MFI relay is located under the console side panel to the left of the radio.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Let me know.
Joe

Hi,

Yes. If the light is blinking when the engine is running, there is a misfire which is likely related to a fuel or ignition issue. These types of misfires can cause damage to the catalytic converter. If it isn't blinking and you have a misfire code, it is likely emissions related.

Now, when you first turn the key on, the check engine light should turn on. Some stay on until the engine starts and others will turn off before starting. However, it shouldn't blink when the engine isn't running.

I hope that makes sense. LOL

Let me know.
Joe

Hi,

What is meant is the code will get you started on the repair or let you have an idea of what is wrong if you take it to a shop for repair.

Is that what you mean?

Joe