Good start > Loss power low RPM> Then to Idle at stop = missfire and low dropping RPM
#1
Good start > Loss power low RPM> Then to Idle at stop = missfire and low dropping RPM
NO CHECK ENGINE LIGHTS, 1994 so NO OBD2..
1994 Civic Coupe EX
232k Miles, Manual Transmission. Everything was told to be original.
Ran fine for a week after buying it, now I cant fix this Issue.
COLD START UP, GREAT idles awesome, sounds great, no misses, no loss of power.
After about 10-15 minutes of driving, LOW RPM power LOSS until you hit 3K+ then it JUMPS and runs great....
Come to a STOP, it now idles like crap, and MISSES, its a CONSISTENT miss.(figure it to be 1 cylinder)
This all lead me to ignition system, or FUEL injectors.
I REPLACED:
*Spark plugs weeks before issue
*WIRES LOOK FINE< NOT REPLACED
*DISTRIBUTOR CAP WAS TOAST<REPLACED TODAY(went to clean post, so crusted it broke off)
*DISTRIBUTOR ROTOR REPLACED FOR GOOD MEASURE TODAY
*FUEL FILTER REPLACED TODAY> Because of good power at HIGH RPM I have eliminated Fuel pump, WAS NOT TESTED for PSI....
Plugs rechecked and look FINE
ANY IDEAS?
I went through HANES manual, I figured the IGNITER Unit looked like crap, COULD NOT FIND PART ANYWHERE, Hanes says it SHOULD be available to purchase??? PLEASE DO NOT CONFUSE WITH IGNITION MODULE. NOT 100% sure this is issue, as it runs fine on cold start, and high RPM, I would think it being MAIN power transfer, the engine would fail to start if it was bad....
A consistent 1 cylinder miss leads me to believe its a Fuel Injector....
Can I check FI one by one?
NO CHECK ENGINE LIGHTS, 1994 so NO OBD2..
I am no mechanic, and doing this in my driveway, would prefer tips, and pointers of what do to next, HOW to check FI quickly, and easily..... Rockauto has REMANs for $38 each, or Orielly for $100 each.... If it comes down to it I might just replace all 4, but cost IS an issue right now.....
Thank you for reading, I know its a longer post, but I NEED help....
Last edited by Duffboy; 03-18-2012 at 05:53 PM.
#2
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Re: Good start > Loss power low RPM> Then to Idle at stop = missfire and low dropping
Did you pull the injectors to observe the spray pattern or that they are all even spraying?
#3
Re: Good start > Loss power low RPM> Then to Idle at stop = missfire and low dropping
Would have no idea how to go about doing that....
Just test drove it again, to get it to start missing.
Parked it, and the #1 injector was *clacking* louder then the other 3, doing the long screw driver to the ear trick....
I read CAT going back can also create loss of power??? But would it create an idle 'miss'
Im thinking about just ordering 4 of the re-manufactured FI's.....
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Re: Good start > Loss power low RPM> Then to Idle at stop = missfire and low dropping
http://www.hondaautomotiveparts.com/...UTOR+%28TEC%29
http://www.hondaautomotiveparts.com/...NTAKE+MANIFOLD
I would think it's either the injector or the ignitor. The ignitor is available through honda.
http://www.hondaautomotiveparts.com/...NTAKE+MANIFOLD
I would think it's either the injector or the ignitor. The ignitor is available through honda.
#6
Re: Good start > Loss power low RPM> Then to Idle at stop = missfire and low dropping
http://www.hondaautomotiveparts.com/...UTOR+%28TEC%29
http://www.hondaautomotiveparts.com/...NTAKE+MANIFOLD
I would think it's either the injector or the ignitor. The ignitor is available through honda.
http://www.hondaautomotiveparts.com/...NTAKE+MANIFOLD
I would think it's either the injector or the ignitor. The ignitor is available through honda.
Got to love stealerships.....
Thanks for the post though! I will google the parts numbers and see if it comes up cheaper then that, but I doubt much cheaper if MSRP is $251....
#7
Re: Good start > Loss power low RPM> Then to Idle at stop = missfire and low dropping
What is the circled part called? I thought it was the Igniter by the Chilton, but now I am second guessing it....
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#8
Re: Good start > Loss power low RPM> Then to Idle at stop = missfire and low dropping
i.also.have.a.similar.problem.my.rpms.when.my.eg.i s.warmed.up.drops.and.my.oil.light.comes.on..idles .low.but.drives.smooth....need.advice.wat.could.it .be.
#9
Re: Good start > Loss power low RPM> Then to Idle at stop = missfire and low dropping
WHILE RUNNING DISCONNECT INJECTORS ONE AT A TIME SEE IF YOU CAN TELL A DIFFERENCE IN THE IDLE. IF IDLE DOES NOT CHANGE THEN IT IS A CLOGGED INJECTOR. ONCE UNPLUG CUTS OFF FUEL SUPPLY TO THAT CYLINDER WHICH SHOULD CAUSE A HARSH IDLE. SINCE YOU HAVE A HARSH IDLE ALREADY THE INJECTOR THAT DOES NOT CAUSE IDLE PROBLEM IS THE PROBLEM. ALSO ON THE BACK SIDE OF THE MOTOR THERE IS A 2 PIN CONNECTOR (GRAY), IT IS THE CRANKSHAFT POSITION SENSOR MAKE SURE IT IS PLUGGED IN AND NOT BROKEN.
#11
Re: Good start > Loss power low RPM> Then to Idle at stop = missfire and low dropping
I actually ran a whole can of Seafoam through it at 1/4 tank, and now its not losing power, and running OK. Still a little ruff, but for $10 it bought be a couple more months I think... I still think the injector is on its way out, I can head it making a clacking noise. I put a long screw driver to my ear, and touched each one, and found the #2 one makes a bit louder noise...
I need to replace rack and pinion before injectors
I need to replace rack and pinion before injectors
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