ok here is what she is doin:

when i am driving down the street (not all the time but usually does it often) my car will be crusing fine then all the sudden it bogs out i can hear the air being sucked but the engine looses all power so i shift it to neutral( its 5 speed) then rev it a few times and it is ok or it will bog a littel bit then gain power back but not if i dont shift it into neutral then itll just bog down all the way. does any one have any idea what this is?? i ahve changed the MAF out thinking that may have had something to do with it and it mad a little differenct but it still does it. does this sound like a sensor problem? maybe o2 sensor i was thinking that but dont want to waste the money on one if it isnt. car has had full tune up cap wires plugs rotor. OK now for the secong problem when my windows are down i can feel heat and smell fumes come in through where the E brake handle is but if i roll the windows up the heat stops coming in it is like pressure in the car has somthign to do with it. i dunno i ahev taken out the center console and could not see any thign that may contribute to it. if any one can help me with this i would be in debt to you thanks

 

when the last time you change the oil? what grade gasoline do you use? 87, 89, 93? It couldnt have been MAF because if that was bad your car would problaly would have die right after you start it. as for the fumes and heat that might be your exhaust might have a small leak right under the ebrake area that might heating up the floor, or could be a cloaked catylic converter.

 

my oil was just changed 2 weeks ago i use 89 octane and i have a full exaust system thats brand new(less then 6 motnths old) with no cat just 2.5 inch pipe all the way from the warpspeed y pipe back to the muffler. i had this exaust on my 89 and it didnt premote any heat into the car and i just unbolted it and bolted it onto my 90 my old MAF made the car bog around 2500 rpm and now thta it has been changed it doesnt do it just does the occasional bug i was mentioning. any ideas with that info being thrown in??? thanks

 

dam..i get that same smell and heat from the shifter panel..i know i got a leak though..double check the ex...also test the continuity on the maf

 

Man my car doesn't have any leaks and has a cat on it. I did put in a canister muffler. Frikn loud, i can't imagine not having a cat.

 

i got all stock..except for the ex. leaks w/ ruins my hiiiii...anyways,its a daily driver..

 

its deep and loud as hell lol.......

 

theres no leaks took it to the muffler shop yesterday. it only lets the heat come in through the shifter panel if the windows are down. if they are up it doesnt come in. i guess its a mystery. i have changed my maf so it couldnt be that. my mechanic said that my o2 may be bad which is problay true because every once and a while my ENG CONT fuse will blow just like another fellow. org member's was and he changed his o2 and it stopped. i am trying to find out if that is the problem with the bogging because that is more of a concern to me then the fuse blowing once a month. could it be bogging because of the o2 making the computer have it run lean or rich or somthing. let me know what you guys think thanks

 

hows the idle

 

my car used to do the same thing, check o2 sensor and a wire was broken off of it, replaced it and everything was in check and running fine....

 

today i checked the o2 thoughroly i took the wire cover off of the wire and one was broken off i went and got a new o2 today but cant put it on till the rain stops i hope this makes the dang thing rin right and quit bogging i wil post to elt you know. has any one figured out why heat seaps in through the e brake area when the windows are down is there a seal i need or somthign????

 

I had the same problem, i changed my o2 the other day. for the same reasons. I bleieve it has something to do with injectors, or my acc isn't set correctly.

 

For the heat, could it be that ur pipes are 2 close?hard to cause u dont have a leak.wont their be a cover around that area for that?their should be at least a heat shield to prevent that.

 

the pipes are pretty low. there is a heat sheild aabout 12-14 inches long. it only lets heat in if the windows are down. if they are up you dont feel anythign coem through there becaus of the pressure in the car. thats why im thinking it a seal or somthing does any one have an idea of whats down around that area i can check?? my other maxima doesnt do this but it is an auto so i it is set up different. im putting the o2 sensor on today to see if my crappy idle and occasional stalling stop.

 

good luck..holla back

 

Ok so today it finally hasnt been raining so i was able to change my o2 i had to take the universal back and get a nissan one which fit in my warpspeed just fine. any how i put it in and the bad idle and stuff has stopped dont knwo wabout the bogging havent taken it out to long yet but i will and let you guys know....

 

FINALLY no more bogging and stalling but i am still trying to figure out where the smell and fumes are coming from. ok if these things are going to with your max it probally is your o2 sensor


1. Blowing your ENG CONT fuse every once in a while.
2. Rough idle
3. occasional stalling when engien comes to an idle or is idling.
4. engine bogging while driving at a constant speed or while accelerating.

these may not be all of them or may not be specifically for the o2 but according to the parts trouble shooting book at bumper to bumper #2 and #3 are a definite symptom.

thanks for everyones hel;p and i hope this can help with a problem someone else may have.

 

well...... it still is bogging..... the idle and fuse popping problemn went away and it sounds alot better but it still bogs out im out of ideas TPS? EGR? can anyone tell me the egr is working fine so i dont htink its that but when i unplug the TPS it doent do anything different could that be a problem? need smoe ideas thanks

 

ok idrove it today and it didnt bog at all i was just thinking maybe yesterdy it did because the ecu was still off i disconnected the battery and reset everythign last ngiht and today she drove like new i had alredy reswet the ecu yesterday but it worked alot better after i did it today

 

Just because i don't know. How do u reset the ecu?

 

 

dammit it still bogs not as bad and not as often just sometiems im gettin irritated some one has to have an idea not maf not o2 what else???? its weird soem days it wont bog soem days it will and it doesnt do it all the time only bogs every once in a while while im driving. any ideas loose sensor, loose plugs engien problem( compression is fine and i highly doubt its the engien just because it runs so queit and smooth) thanks....