threw a check engine code on the caR last night...


when i checked it, it flashed four times slow, then three times fast...


now, i had this happen before i believe, and it was an o2 sensor.......sound right?

 

code 43... fuel supply systyem malfunction/defective

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mythias &raquo;</TD></TR><TR><TD CLASS="quote">code 43... fuel supply systyem malfunction/defective</TD></TR></TABLE>


fuel pump?


???

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boostjunkie757 &raquo;</TD></TR><TR><TD CLASS="quote">fuel pump?</TD></TR></TABLE>

Yah, that was my first thought, but if it was running OK, hmm...

Search shows it could be O2 sensor or clogged fuel filter, or bad fuel injector. FPR could be it too.

Does it stutter/sound like crap at WOT?


» Search Results

Your search for Fuel supply system returned 30 results.

 

no, it runs well at wot....

a/f ratio gauge reads lean....but shad (who tuned it, when he worked at abacus) said if it were running lean that itd be popping and breaking up....she runs strong..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boostjunkie757 &raquo;</TD></TR><TR><TD CLASS="quote">no, it runs well at wot....

a/f ratio gauge reads lean....but shad (who tuned it, when he worked at abacus) said if it were running lean that itd be popping and breaking up....she runs strong..</TD></TR></TABLE>

How does it read on the highway?

It could be a fuel filter. I'd replace it if you haven't recently. Check the vacuum line to your FPR too.

Dude, if you're running lean, back off until you fix it you boosted bastard.

 

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

How does it read on the highway?

It could be a fuel filter. I'd replace it if you haven't recently. Check the vacuum line to your FPR too. Do you have a VAFC or anything like that?</TD></TR></TABLE>


yes, i do have a vafc, but i hadnt messed around with it....i also have hondata s200b....

on the highway, she runs smooth, but reads lean....then will slowly start to scale up into stoich...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boostjunkie757 &raquo;</TD></TR><TR><TD CLASS="quote">on the highway, she runs smooth, but reads lean....then will slowly start to scale up into stoich...</TD></TR></TABLE>

OK, well, that sounds like an O2 sensor, but it still could be fuel filter.

 

but if it were fuel filter, if i stomped on it dont you think that it would start to break up and miss?


also, when the car first starts up, it reads pegged rich (car is in warm up) and then after it warms up, reads lean...


when the car is still warming up, its running off ecu, not sensors right?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boostjunkie757 &raquo;</TD></TR><TR><TD CLASS="quote">when the car is still warming up, its running off ecu, not sensors right?</TD></TR></TABLE>

Yep, the 02 sensor has to get hot to work, so it just runs open loop until it heats up.

Same thing for WOT, it doesn't read the O2 sensor either.

If you're lean at WOT, in boost, you have a serious issue. It can run pretty decent at stoich in boost, it'd probably run great until you melted a spark plug. So be careful.

-Chris

 

aye aye captain....

im gonna have to talk to our honda boys about hooking it up to a diagnostic...

 

well, from the looks of the search results i looked at, it seems like it should be an o2 sensor.....thing is, everyone else says the light comes on while theyre moving, now it did come on once like that, but every other time it has come on, it has done so when the car is first turned on....


*sigh*

i was too busy to check with my honda store on lunch break, might have to look into having it checked out towards the end of the work day...