i have a 99 honda civic ex coupe w/ a b18b1 swap in it. latly my car will bogg down when you press the gas pedal all the way down. and sometimes wont even start. i just had the timing belt and water pump replaced. timing is dead on. i just did a tune-up on it (cap,rotor,wires, and plugs) it helped a little but not much. my check engine light will come on when i am driving but noone can check the stored codes b/c i have a converter for the ecu to obd1 ls ecu. i am thinkin o2 sensor but i want to be sure before i get one. any help would be greatly appreciated.

 

oh yea and also when i accelerate it wont go anywhere till it reaches like 4500 rmps then it will be fine.

 

chekc your ignition. pull ur spark plugs and see if they have oil on them.

 

it is also possible that your plugs are gapped wrong...or ignition timing...firing order...how have you verified your valve and ignition timing?

 

could be your dizzy myn did the same bogg down and work at low rpms and the tach would shoot all over the place check the igniter or coil??my input

 

thanks i will try that stuff today when i get chance


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by djsire &raquo;</TD></TR><TR><TD CLASS="quote">chekc your ignition. pull ur spark plugs and see if they have oil on them.</TD></TR></TABLE>

yea i just replaced all of that stuff, cap rotor wire and plugs

 

you sure you have the firing order correct?

 

when the engine is running does it sound like a lawn mower? if so, your spark plug wire is not in the right order

 

ok well i checked the firing order it was right i even pulled of 2 of them and switched them and it was worse. my gas milage has gone to ****. amd air/fuel ratio guage is reading into the deep lean side. usually it runs right in the middle. i put new plugs in also, not too bad but also not too god either. i am thinkin maybe the o2 sensor???????

 

and also thanks for all of the help so far guys!

 

ok did the old paper clip trick, gave me 4 slow blinks and then 3 fast so i guess thats a code 43 on the code topic it says it a fuel supply system code? any ideas on what i do to change that?

 

check for any vacuum leaks and your fpr and check your fuel pressure

 

could be a vacuum leak, but go to auto zone or something and get the codes checked just to be sure

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by honda head &raquo;</TD></TR><TR><TD CLASS="quote">could be a vacuum leak, but go to auto zone or something and get the codes checked just to be sure</TD></TR></TABLE>

i cant get the codes checked b/c it is converted to an obd1 ecu, and they can only read obd2, it wont make a connection with the ecu. i check around for vacum leaks didnt see anything

 

anybody know what my fuel pressure should be at?

 

i had the same problem, it was the o2 sensor.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EK tommy &raquo;</TD></TR><TR><TD CLASS="quote">i had the same problem, it was the o2 sensor.</TD></TR></TABLE>

cool i will be putting one of these in today, hopefully it will fix my problem b/c my gas went from 350 miles per tank to like 250 per tank.

 

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

i cant get the codes checked b/c it is converted to an obd1 ecu, and they can only read obd2, it wont make a connection with the ecu. i check around for vacum leaks didnt see anything</TD></TR></TABLE>

thats just stupid... were do you live?... the autozone by my house has diagnostic tools for obd0,1,2... do you know anybody with a data logger?

 

South Carolina, the autozone here arent worth a ****, but i think i have it fugured out now i called honda with the code and they said it was the o2 sensor

 

Change the ecu to obd2 again and go from there if it runs good it might be your conversion harness. If its your o2 it should throw a c.e.l

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kleanlscivic &raquo;</TD></TR><TR><TD CLASS="quote">South Carolina, the autozone here arent worth a ****, but i think i have it fugured out now i called honda with the code and they said it was the o2 sensor</TD></TR></TABLE>

awesome... thats good... man i cant believe those autozones dont have the obd0 and 1 plugs, man you should invest in a data logger... well, i need to get one too

 

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

awesome... thats good... man i cant believe those autozones dont have the obd0 and 1 plugs, man you should invest in a data logger... well, i need to get one too </TD></TR></TABLE>

yea i know, well hoepfully this 02 sensor will fix it b/c right now my **** sounds like a lawnmower

 

ANYBODY KNOW WHICH O2 SENSOR IT IS?

 

it will be the one before the catalytic converter (this controls the a/f mixture.) on an obd2 car, the o2 after the cat is mostly to check the operation of the cat/emissions. if you're running obd1, then the one on the manifold or before the cat (whereever yours is located) is the one you want to swap out.

 

thanks man. i bought an o2 sensor off of one of my buddys well it is actually the one for the cat itself, do you think it would be alright if i cut an spliced the other connector onto it? using heat shrink and it and all that good stuff? i mean thats how the universal ones are. let me know guys