misfire help please
#1
misfire help please
hi guys im new here i have a question i have a 1995 dodge dakota extended cab 2 wheel drive 5.2L v8 it has 150,000 miles im have a misfire issue here it is...ok between 1800 rpm -2200 rpm at steady throttle i have a bad missfire.so far ive done this to try to correct it..quality full tune up,crank position senser,coil,throttle body gasket,fuel pump was replaced recently the plate in the distributor was replaced,injectors replaced, ignition switch replaced.map senser,tps senser,idle air control valve senser. i did check the fuel pressor its at 40psi and also drove the truck with the fuel pressure gadge on and when it was missfireing the gadge stade normal this problem has got me puzzled please help me what are your thoughts?....
#4
Actually according to the 95 Dodge Dakota Factory Service Manual 40 just right.
1995 Dodge Dakota Manual (35-45 psi) at idle.
The best way to start is to find the miss. Start by unplugging each injector (while the engine is running and it is missing) 1 at a time and listen and feel for a change in the engine. The 1 injector that doesn't change the engine is most likely your problem cylinder. Check the injector swap it around, check the power check the spark plug swap that around check the spark plug wire. ECT.
1995 Dodge Dakota Manual (35-45 psi) at idle.
The best way to start is to find the miss. Start by unplugging each injector (while the engine is running and it is missing) 1 at a time and listen and feel for a change in the engine. The 1 injector that doesn't change the engine is most likely your problem cylinder. Check the injector swap it around, check the power check the spark plug swap that around check the spark plug wire. ECT.
Last edited by Crazy4x4RT; 08-10-2012 at 09:52 AM.
#5
Really? From what I remember that was pressure for 92/93 with 2 line (feed/return) fuel system and the 94+ with single line returnless was like 49-50
#6
1993 Dodge Dakota Manual 31psi, 39 with no vacuum.
1995 Dodge Dakota Manual (35-45 psi) at idle.
1996 Dodge Dakota Manual (49.2 psi ± 5 psi) at idle.
I put together list of fuel pressures of years Dakota and Ram per service manual. Also added in a list of fuel injector specs. Its in the FAQ if anyone ever needs it.
https://dodgeforum.com/forum/2592323-post4.html
#7
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#8
Like I said YOU will have to find the miss then YOU can fix it.
The best way to start is to find the miss. Start by unplugging each injector (while the engine is running and it is missing) 1 at a time and listen and feel for a change in the engine. The 1 injector that doesn't change the engine is most likely your problem cylinder. Check the injector swap it around, check the power check the spark plug swap that around check the spark plug wire. ECT.