I am running lean I take it cause my spark plugs are white as can be at the moment and when I smog I am putting out high NOx...whats the best way to richen up the motor but I dont want to be spitting gas out the exhaust from not being burned...

 

ttt

 

new filter and new injectors...if it was just one the plugs would show diff colors...and fuel pressure is aroun45 so cant be that,,,,

 

bump

 

what ecu?

How old is the o2 sensor?

I wouldn't touch that no2 until you get this figured out.

 

its pm6 or whatever everything pretty much stock on my d16a6 but header and CAI....and o2 is new. and I was wondering why my car seems to get so hot I check out the spark plugs and they all white as can be but ring is black so I take it runs rich at startup(warmup)...

 

I would verify that you are, in fact, running lean with something like an EGT sensor or even wideband o2 sensor.

Just generally speaking...You could have a clogged fuel injector or fuel filter, bad MAP sensor, low fuel pressure, a leak in the exhaust system, a vacuum leak, a bad O2 sensor or a cracked PCV hose.

It's a hard problem to chase.

 

about take it to a smog place that fixes issues and see what they say

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by yz125rider21 &raquo;</TD></TR><TR><TD CLASS="quote">I am running lean I take it cause my spark plugs are white as can be at the moment and when I smog I am putting out high NOx...whats the best way to richen up the motor but I dont want to be spitting gas out the exhaust from not being burned...</TD></TR></TABLE>

dont go by spark plug reading unless you do a full throttle plug chop. if you take the plugs out after the car has idled even just a little the plugs will read the last condition they saw -lean at idle is normal there is no load on the engine, to read the plugs you have to have load on the engine like driving hard or up a hill and then just turn off at full throttle. then see what your plug looks like

 

i see I thought they turn golden brown or something when its running good always???but I take your advice..I just retard timing 1 more degree and go smog it tomorrow...

 

ok so I retarded the timing and the motor engauges into gear 100% smother...question is why do I have to retard it 2 degree beyond stock to get it to run smooth???

 

any advice on why car is like this??? when I get money i be upgrading fuel rail and geting a fpr so I can have more controls over the fuel adjustment instead of just retarding the timing to keep it fmr leaning out...

 

where is the tech in this forum anymore.............