Question about Cars & Trucks
Injectors do not pulse. there should be a constant pressure to them at all times. I need more info. Could be bad pump, regulator, or etc...
Posted on Mar 18, 2014
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Posted on Jan 02, 2017
SOURCE: no injection pulse
looking at the schematics, well the PCM controls the pulse width to the injectors , BUT , there is a injector coil fuse , its #2 in your kick panel fuse box , a 20 amp , check it , sure hope that fix ya . that would be sweet .
Posted on Jan 15, 2009
95-97 Maximas had a problem where condensation from the A/C would accumulate in the a/c evaporator case from the drain becoming restricted or blocked, When this would occur, condensation would drip onto the ECM and a problem would develop with misfire and/or starting. I would look at the ECM where the harness connects to it for corrosion problems. If you find it, there is a chemical spray which can be used to clean the terminals and/or you can clean them, although it is time consuming and difficult to due because of how small the terminals are. After things are cleaned up, lightly coat the connections with a dielectric grease. This will prevent electrolysis.I believe you can buy these at Radio shack and possibly at an automotive parts supplier.
Also a drop in voltage during the cranking phase will cause a weak spark. Your ignition is what pulses the injectors. It takes a minimum of 9.6 volts, but ideally you want at least 10.5 or more during the cranking phase if you want to get a spark worth anything. Check the voltage on the primary side of the coil while cranking the engine.
I'll watch to see if things work out for you, let me know. ....mybunkey
Posted on Apr 18, 2009
Fuel pump, you have to have press in the rail to fire all injectors- she will run on ether but not good for her. Ck your pump and any related fuses,relays,wiring.
Posted on Jul 12, 2009
SOURCE: Have a 2005 Smart Car
Hello and welcome to FixYa!
Have you replaced the fuel pump? Try to turn the car on ON position but don't crank it. Loosen the bolt on the fuel rail and observe if there's fuel coming out. If there's none then you have a bad fuel pump which will require replacement to resolve the problem.
Hope this helps and thank you for using FixYa! Have a good one!
Posted on Jul 23, 2011
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