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91 honda accord engine flooded of gas overnight

I have 91 accord with a problem that is turning me crazy, I have good engine compression 140 psi, good and strong spark, fuel pressure is 35psi , good injector pulse, when starts runs great, the only problem is when I left the car for overnight won't start next day, I have to pull spark plugs and crank over , and starts, please help

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  • 103 Answers

Be more explicit.
How the spark plugs looks like? Are them black?

Posted on Nov 25, 2013

  • 6 more comments 
  • Raul0024 Nov 25, 2013

    Yeah! I just put new setr of spark plug, and every time this happens the spark plugs getting wety of gas

  • Joita Constantin
    Joita Constantin Nov 25, 2013

    If you start and stop several times a day the problem occurs, or the problem is only after a long period of time like you said?That could mean the air/gas ratio is to rich. The mpg is ok?

  • Raul0024 Nov 25, 2013

    No it just happens when I Left the car overnight, is not rich mpg is ok . For now I just unplugged the injectors to find out if is electrical or mechanical problem , I try to start it tomorrow

  • Joita Constantin
    Joita Constantin Nov 25, 2013

    If the problem dissapear with the injectors unplugged, than is a little weird. Should mean that the fuel pump is still running over night or the injectors are leaking a little gas because the fuel rail is under pressure even if the pump is offand in a few hours this counts.

  • Joita Constantin
    Joita Constantin Nov 25, 2013

    But anyway, if there is a leaking problem with the injectors and if you unplugg the wires from them, them will still leaking gas because is a mechanical problem. Reply with what you find in the morning.

  • Raul0024 Nov 25, 2013

    Thal?a for Your helo ! I llet you know

  • Raul0024 Nov 26, 2013

    Hi ! Just to let you know that I left the car overnight with injectors unplugged and I put the wires back and stars with no problems . I just put a new main rrelay! I hope starts tomorrow moorining

  • Joita Constantin
    Joita Constantin Nov 26, 2013

    I'm glad that the car is ok now. It's weird that the car starts with wires left unplugged over night. You should check with a voltmeter if you have power on injectors wires after turning the ignition off. Hope you will solve it.

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Posted on Jan 02, 2017

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SOURCE: 1993 honda accord 2.2,no injector pulse

This sounds like a main relay problem here is a diagram its located under the dash under steering column its the brownish -orange box in the picture. http://www.tegger.com/hondafaq/mainrelaylocation/7-main_relay_closeup.jpg Good luck and thanks for using FIX YA

Posted on May 15, 2009

blueextc3221
  • 15935 Answers

SOURCE: 2001 Chevy Malibu, 89,000 miles, 3.1 engine, won't start

CLICK HERE for the injector schematic.
CLICK HERE for the Ignition schematic.

Since the PCM uses info gatheres from the crank and cam sensors to calculate ignition - and there are no OBD codes - in all likelihood, the PCM itself is bad.

The Ignition Module, also transmits to the PCM.

It appears after all your testing - that the PCM is at fault.

It does not error report on itself (unfortunately).

The ignition timing is controlled by the Powertrain Control Module (PCM). No adjustment is necessary (distributorless ignition) or possible.

Please see the following....

The ignition timing is controlled by the Powertrain Control Module (PCM). No adjustment is necessary or possible.
The engines covered by this manual are equipped with distributorless ignitions, ignition timing is controlled by the Powertrain Control Module (PCM), as applicable. No adjustments are possible. If ignition timing is not within specification, there is a fault in the engine control system. Diagnose and repair the problem as necessary.
Ignition timing is the measurement, in degrees of crankshaft rotation, of the point at which the spark plugs fire in each of the cylinders. It is measured in degrees before or after Top Dead Center (TDC) of the compression stroke.
Ideally, the air/fuel mixture in the cylinder will be ignited by the spark plug just as the piston passes TDC of the compression stroke. If this happens, the piston will be at the beginning of the power stroke just as the compressed and ignited air/fuel mixture forces the piston down and turns the crankshaft. Because it takes a fraction of a second for the spark plug to ignite the mixture in the cylinder, the spark plug must fire a little before the piston reaches TDC. Otherwise, the mixture will not be completely ignited as the piston passes TDC and the full power of the explosion will not be used by the engine.
The timing measurement is given in degrees of crankshaft rotation before the piston reaches TDC (BTDC). If the setting for the ignition timing is 10 BTDC, each spark plug must fire 10 degrees before each piston reaches TDC. This only holds true, however, when the engine is at idle speed. The combustion process must be complete by 23° ATDC to maintain proper engine performance, fuel mileage, and low emissions.
As the engine speed increases, the pistons go faster. The spark plugs have to ignite the fuel even sooner if it is to be completely ignited when the piston reaches TDC. Spark timing changes are accomplished electronically by the engine and ignition control computers.
If the ignition is set too far advanced (BTDC), the ignition and expansion of the fuel in the cylinder will occur too soon and tend to force the piston down while it is still traveling up. This causes pre ignition or -knocking and pinging-. If the ignition spark is set too far retarded, or after TDC (ATDC), the piston will have already started on its way down when the fuel is ignited. The piston will be forced down for only a portion of its travel, resulting in poor engine performance and lack of power.
Timing marks or scales can be found on the rim of the crankshaft pulley and the timing cover. The marks on the pulley correspond to the position of the piston in the No. 1 cylinder. A stroboscopic (dynamic) timing light is hooked onto the No. 1 cylinder spark plug wire (2.2L engine only, on the 2.4L engines, special adapters are needed) . Every time the spark plug fires, the timing light flashes. By aiming the light at the timing marks while the engine is running, the exact position of the piston within the cylinder can be easily read (the flash of light makes the mark on the pulley appear to be standing still). Proper timing is indicated when the mark and scale are in specified alignment.


WARNING When checking timing with the engine running, take care not to get the timing light wires tangled in the fan blades and/or drive belts.

The engines covered by this manual are equipped with distributorless ignitions, ignition timing is controlled by the Powertrain Control Module (PCM), as applicable. No adjustments are possible. If ignition timing is not within specification, there is a fault in the engine control system. Diagnose and repair the problem as necessary.




Thanks for using FixYa!!

Posted on Aug 18, 2009

ftw1952
  • 10319 Answers

SOURCE: 2001 honda civic ex,wont start, no injector pulse,

Injector pulses are sent from the engines computer. Have that checked out

Posted on Apr 07, 2010

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