What would cause a 1991 Honda Civic 1.5l dpfi to flood?

JDNICHOLS

MEMBER
1991 HONDA CIVIC
137,000 MILES

Hey, my 1991 Honda Civic 1.5l dpfi is acting like it is flooding, on most days it will start fine, but when driving for a while it will just die, then it will not start for a few hours. I have changed the air filter and plugs and wires. Thinking it could be fuel filter, as the fuel pump kicks in and the pressure is good, or maby a leaky fuel injector, not sure on that cause it would flood the engine at all times if im not mistaken, when I went to oreillys to get a fuel filter the one they gave me the hookups where backwards and the lines weren't long enough to simply swap them over. So, I put the old filter back on, forgetting to check if it plugged. If you have any ideas please let me know? Maby the coolant temp sensor causing ecu to pour in fuel? I have no idea and am getting flustured.
Thanks Jesse

3 Replies

KHLOW2008

MECHANIC
41,814 POSTS

If it is dlooding that is the cause, the ECT would be the most likely suspect as it is intermittent.

Is the MIL indicating?

Have you checked if it is sparks that is weak or missing that is causing the problem?

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Friday, February 17th, 2012 AT 11:39 PM

JDNICHOLS

MEMBER
2 POSTS

It has spark, I'm not sure how to check the MIL. I was talking to my friend and he was saying that I have to use a wire to complete a circuit and count the lights? Where can I locate it, I checked brefly under passenger dash but didnt see anything that stood out.

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Saturday, February 18th, 2012 AT 3:55 AM

KHLOW2008

MECHANIC
41,814 POSTS

https://www.2carpros.com/articles/honda-car-1990-1995-obd1-code-retrieval-procedure-and-definition-table

Above link explains trouble codes.

RETRIEVING CODES

When the Check Engine warning light has been reported on, pull down the passenger's side carpet from under the dashboard, turn the ignition on, and observe the LED on the top of the ECU. The LED indicates a system failure code by blinking frequency. The ECU LED can indicate any number of simultaneous component problems by blinking separate codes, one after another. See Fig. 1 .

Proceed to appropriate code for testing. All voltage tests should be performed with a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance, unless specifically stated differently in testing procedures.

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