So, about 2 months ago I made a post about my engine bogging and hesitating, but only under serious load at low rpm's (i.e. 3rd gear, sub 2k, WOT). Well, come to realize my dizzy is SHOT and cam timing is off 2 degrees. Got that fixed (whew). Well, today I make a hard 3rd gear pull from way down low, and what happens, the motor pulls like a pedal bike up to about 3k, but then runs all the way to redline without a hickup spinning the tires as soon as vtec x-over.

Anyone have any clue? Could my cam timing have gotten off again? I have replaced the whole dizzy, timed the ignition (+1), and installed new plugs. The ONLY other thing it really could be (i feel like) is plug wires. HELP!

 

bump for some help!

 

i think it might be that honda engines dont have much torque in the lower rpms.. especially stock ones. and what is a serious load at low rpm? are you pulling a trailer?

if you are wondering why you cant sit at idle and then punch the gas and drop the clutch and do a burn out, the answer is torque. try revving it up to 4000 before you drop the clutch and you wont have any hesitation.

any info about the engine you might have would be good also.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sanimalp &raquo;</TD></TR><TR><TD CLASS="quote">i think it might be that honda engines dont have much torque in the lower rpms.. especially stock ones. and what is a serious load at low rpm? are you pulling a trailer?

if you are wondering why you cant sit at idle and then punch the gas and drop the clutch and do a burn out, the answer is torque. try revving it up to 4000 before you drop the clutch and you wont have any hesitation.</TD></TR></TABLE>

I think you are misunderstanding the scenario.

Say for instance you are cruising at low rpm, 1500 or so in 3rd gear, then go WOT throttle the motor will hesitate and stumble...this has nothing to do with idle or launching. When I use the term "load" I am not making reference to weight, yet I am referring to load on the motor itself.

...anyone?

 

I had a similar issue, my clutch is slipping because my rear main seal went and there is oil in my clutch.

 

every ef i have ever driven has that same problem, where it seems like it misses or stumbles. i think its a combination of the ecu playing catch-up to driver inputs, and the engine being on the verge of stalling.

there is kinda a fine line between where an engine will stall and die out, and where it will produce torque and power through the event. the engine cant produce enough torque to complete a rotation and stalls, but since your car is moving forward the torque from the road "starts" the engine again, or just keeps it spining just at a lower speed thereby needing less torque but the side effect is you get the hesitation you are experiencing.

the same thing will happen if you try to start your car from a dead stop in 3rd gear.. except your car really will stall because there is no forward momentum to keep the engine rotating.

 

My brother used to have the same problem with his d-series motor in his 91si....once he did the swap, everything was fine. I have kinda wondered if it could be the clutch from time to time....does this sound consistent with a slipping clutch???

I'm going to change my plug wires and check my dizzy again, and this will eliminate every ignition component on the car.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Voodooboy520 &raquo;</TD></TR><TR><TD CLASS="quote">I had a similar issue, my clutch is slipping because my rear main seal went and there is oil in my clutch.</TD></TR></TABLE>

ive got the same problem with the stuttering sometimes, at first i thought it was the gas i use but now that you say this i replaced my rear main seal middle of last year maybe it went again and this is whats happenin ..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sanimalp &raquo;</TD></TR><TR><TD CLASS="quote">
the same thing will happen if you try to start your car from a dead stop in 3rd gear.. except your car really will stall because there is no forward momentum to keep the engine rotating. </TD></TR></TABLE>

Actually I can start from a dead stop in 3rd gear

I doubt the clutch likes it very much though.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by oldB18EF &raquo;</TD></TR><TR><TD CLASS="quote">

ive got the same problem with the stuttering sometimes, at first i thought it was the gas i use but now that you say this i replaced my rear main seal middle of last year maybe it went again and this is whats happenin ..</TD></TR></TABLE>

What kind of symptoms were you experiencing, anything like I explained?????!?!?!?

 

I had some sputter, for a while, put in a new coil and it ran like a champ. air, fuel, spark

 

What are your mods? If you do enough work to an engine the stock computer will not run your engine well, maybe you need to get your car tuned?

 

I had a hesitation/misfire problem, but it was in the higher RPM's. Turned out to be my spark plug gap.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by chadmasterc &raquo;</TD></TR><TR><TD CLASS="quote">What are your mods? If you do enough work to an engine the stock computer will not run your engine well, maybe you need to get your car tuned?</TD></TR></TABLE>

I'm not modded anything crazy, just got my car tuned about a week ago, same problem existed both before and after the tune. Brand new dizzy and spark plugs also btw.

 

Could be the coil. My friends integra did the same thing until he replaced the coil. My 4 door does it sometimes too.

 

I kind of had a similar situation with my crx, if the engine's rpms were around 2k or sometimes going up hills, it would throw a check engine light. I replaced the timing belt and tensioner, and it works fine now. I hope everything works out for you; it is probably something stupid that was overlooked.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by big trev &raquo;</TD></TR><TR><TD CLASS="quote">I kind of had a similar situation with my crx, if the engine's rpms were around 2k or sometimes going up hills, it would throw a check engine light. I replaced the timing belt and tensioner, and it works fine now. I hope everything works out for you; it is probably something stupid that was overlooked. </TD></TR></TABLE>

Yeah, it's kinda my worry that it might be the cam timing (i.e. the belt jumping teeth) cause immediately after I reset the timing belt I don't remember this happening, however, now it is happening again. Guess it's time to pull the valve cover off one more time.

 

Well, checked cam timing, it is fine. One thing I noticed, it is starting to get worse. Now the engine will hesitate at low rpm's even under just a slight throttle. I'm going to check the dizzy cap and replace the plug wires and see what the expletive happens.

 

it's going to be the plug wires or the spark plug gap.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2point2 &raquo;</TD></TR><TR><TD CLASS="quote">it's going to be the plug wires or the spark plug gap.</TD></TR></TABLE>

Awesome, I will check the gap first then get some new plugs wires.

 

I would definitly replace the plug wires and check cam timing and static timing once more just to be on the safe side.

I had bad plug wires and it would sputter with high load at low RPMs and I went through the trouble of replacing some other parts before I got to the simple plug wires which in case solved my prob.

 

Yep, I've checked cam timing/static a couple times, she's dead on. I'm going to do the plug wires shortly and I'll let everyone know if it works or not!

 

hey,

just a question...would this be a B16 swap that you have in your car

if it is then you most likely have the primary and secondary O2 sensors wired wrong

let us know what you have for your motor

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by spankjelly &raquo;</TD></TR><TR><TD CLASS="quote">Yep, I've checked cam timing/static a couple times, she's dead on. I'm going to do the plug wires shortly and I'll let everyone know if it works or not!</TD></TR></TABLE>



did get get stranded?

 

I had the same problem for quite some time. Replaced the ignitor, coil, cap, rotor, plugs, then finally the wires. Guess what, it was the wires...... It's worth a shot might be the same problem for you.