my 1990 crx dx with a d15b2, dpfi has a real bad stuttering problem from 0-25mph. its really annoying and this is my daily driver. im lost as to what is causing it.
this is what ive replaced so far.

spark plugs
plug wires
dist. cap/rotor
fuel filter
injectors
headgasket set
air filter
o2 sensor
iat sensor
timing is dead on and idles fine

 

Bubbles in the coolent????

 

if you know someone with a matching dist. then try it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mr. carpenter &raquo;</TD></TR><TR><TD CLASS="quote">if you know someone with a matching dist. then try it.</TD></TR></TABLE>

no i dont.... what exactly could be wrong with the dizzy?

 

I think last time some one ask about this they said it was the igniter inside the dizzy. cant remember exactly sorry.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike93eh &raquo;</TD></TR><TR><TD CLASS="quote">

no i dont.... what exactly could be wrong with the dizzy?</TD></TR></TABLE>
if it's going out, the car will misfire and and stumble, especially at low rpms.

 

anyone have a spare ignitor?

 

What kind of intake manifold do you have my buddy had one just changes yesterday. It was studding and jerking so he did everying even put another motor in his car but use the same intake manifold and it still had the same promblem so he change intake manifold and it runs perfect now.

 

the stock intake manifold.

i checked my coil. they haynes manual said it should have 0.3-0.5 ohms of resistance between the two terminals... mine has 0.9 could this be it? my engine runs perfectly fine other than the stuttering on take off..

 

do anything with you coolent?

 

what does my coolant have to do with this?

my cooling system is running perfectly fine. actually the whole car is perfectly fine except for this stuttering.

 

bump need help

 

yeah, bubles in the coolent causes suttering, The bubles get wraped around the sensors. I had the same problem as you, and bleeding the Coolent system correctly fixed it.

 

yea but if the sensors werent working right then i would get a CEL. and besides what sensors that come in contact with coolant can cause stuttering??

 

you sure it's .3? i thought it was 350-550 ohms, helms manual says to replace the distributor if it's not inbetween those. mine was 373 and there was no continuity so i have a bad wire somewhere...sucks not driving the crx.

edit:fixed my resistance number.

 

you said you had 373 ohms and then you said you had NO continuity? HUH?

yes the manual says 0.3-0.5 ohms between the two terminals. mine is 0.9 but drives great except for the stuttering at take off.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike93eh &raquo;</TD></TR><TR><TD CLASS="quote">yea but if the sensors werent working right then i would get a CEL. and besides what sensors that come in contact with coolant can cause stuttering??</TD></TR></TABLE>

wrong, IACV I think it is called. Mine had no CEL.

 

even if the haynes manual says .3 to .5 .9 is still out of that range, is it supposed to be out of the range? what does the manual say if it's out of range?

 

Form all my past honda experiences, stuttering has been due to ingition related problems. Usually bad wires, plugs or coil.

Just because youve changed something... dont rule it out... ,Ive seen it lots where the new parts installed are bad.

Usually ingition problems happen at lower rpm's... and after the rmp's are raised... it is not as notceable.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LaFawnduh &raquo;</TD></TR><TR><TD CLASS="quote">wrong, IACV I think it is called. Mine had no CEL.</TD></TR></TABLE>

you said sensors. IACV is a valve, not a sensor..it has no wires going to it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hotboxedcrx &raquo;</TD></TR><TR><TD CLASS="quote">Form all my past honda experiences, stuttering has been due to ingition related problems. Usually bad wires, plugs or coil.

Just because youve changed something... dont rule it out... ,Ive seen it lots where the new parts installed are bad.

Usually ingition problems happen at lower rpm's... and after the rmp's are raised... it is not as notceable.</TD></TR></TABLE>

yes but basically what i need to know now is can a coil cause stuttering at low rpms? ive always though that they either work or they dont..

btw, the haynes manual says if its not 0.3-0.5 then to replace the coil...but before i go and waste $50 on a new one, i want to kinda make sure that the coil can cause my problems..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike93eh &raquo;</TD></TR><TR><TD CLASS="quote">you said sensors. IACV is a valve, not a sensor..it has no wires going to it.</TD></TR></TABLE>

wow, you are one picky *****.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LaFawnduh &raquo;</TD></TR><TR><TD CLASS="quote">wow, you are one picky *****.</TD></TR></TABLE>

excuse me! im not being an *** or *****.

you said sensors, then i said i would get a CEL..since the CEL comes from sensors, then you said IACV, then you said i was wrong about saying i would get a CEL from sensors, then you call me picky *****.

GTFO

 

I had the same **** happen on my d15 dpfi, it was the dizzy so junked that engine! Change that ****

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civicjdmb16a &raquo;</TD></TR><TR><TD CLASS="quote">I had the same **** happen on my d15 dpfi, it was the dizzy so junked that engine! Change that ****</TD></TR></TABLE>

what specifically about the dizzy, you know?