Question about 1991 Honda Accord
91 accord, i have spark,fuel pressure but no injector pulse. someone else suggested that it could be the pump relay. does that control injector pulse as well???
Yes it does control the fuel system, try changing it out with a know good one or new one. let me know if that solves.
Posted on Jan 07, 2013
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Posted on Jan 02, 2017
I know that you want a simple answer but, have you done any troble shooting steps at the pump its self? when the relay is in does it pump at all? what is your lin pressure?
Posted on Jul 03, 2008
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
The relay may be located in the under hood fuse/relay box.
Check your manual for the location of the relay, if listed.
Check for a sticker on the inside of the under hood fuse/relay box for a possible guide.
Posted on Jul 31, 2010
If you think there is fuel pressure just because the fuel pump kicks in, you might not actually have pressure. The fuel pressure regulator could be shot which would cause the fuel to go right through the fuel rail and back into the tank. So make sure you use an actual fuel pressure gauge to test that and rule out the pressure regulator...just had to make sure you did that.
If you do in fact have fuel pressure, spark, and compression, then the issue is either your timing or that the fuel is not getting inside cylinder. Timing fix is obvious, the issue with your fuel could be clogged injectors, bad injectors, or the injectors are just not getting the signal to fire. The latter is the most likely. Use a mechanics stethescope and hold it to one of the injectors and listen for a clicking sound when your cranking the engine over. You can pick one up at harbor freight or sears. You could also take a screwdriver and hold it against the injector and press your ear against the handle. However, if the engine shakes while you crank it you might have a very bruised ear...try explaining that one to your friends. If the injectors are not firing, the resistor pack is probably bad. The resistor pack is that thing on the drivers side of the engine compartment with the heat sink on it. Pick up a new one from a junk yard if you want to save a few bucks. That should fix your problem though.
Posted on Dec 07, 2010
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