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Car Forum / Nissan / Nissan Cars / September 20052001 Sentra SE 5sp, intermittent bad idle, need help
Greetings I've had my car in at the shop 4 times now to get to the root cause of the intermittent bad idle with no luck. My Sentra SE 2.0L (SR20DE) has 105000km on it and has been serviced regularly. For the past month I've been getting this intermittent bad idle experience. When I take my foot off the gas to brake and put in the clutch the engine will stall or go to very very low RPMS. It doesn't happen every time but can be recreated after normal driving. When it stalls out it can be starts up again but I need to keep my foot on the gas pedal to keep it going. The Nissan tech has, cleaned out the throttle body, reprogrammed (relearned the idle) two times now and I've had services to the injectors. These fixes work for a short time but the problem reoccurs. I understand these intermittent problems are hard to troubleshoot but any help or suggestions would be appreciated. I'm in Kitchener Ontario.. Thanks > Greetings > [quoted text clipped - 7 lines] > can be recreated after normal driving. When it stalls out it can be starts > up again but I need to keep my foot on the gas pedal to keep it going. I would check the wiring to the idle control valve, it sounds like it might not be opening at idle all the time, which would cause a low idle. You could unplug the connector to the valve and then take a quick test drive and see if it behaves like it does when it's acting up, or try wiggling the connection the next time you have the problem. Of course by unplugging the valve you will likely set a trouble code in the ECU so you may want to make sure there are no other codes set first if you haven't already. The valve might be carboned up inside as well, but if that were the case I'd expect it would act up all the time rather than occasionally. Hope that helps... and good luck solving your problem! "" wrote: > Greetings > [quoted text clipped - 27 lines] > > Thanks did u have the mass air flow sensor checked out, perhaps u need a new one, my 2000 sentra would stall when i come to a stop or was just in idle I changed the Mas Air Flow meter. Now the experience of the bad idle is 100% predictable. I mean replaying the Mass Air Flow changed the problem from intermittent to I can know when it's going to happen. It happend only under this condition. The engine is cold. I start the car up and the idle is OK. It seems a bit high at start but not stalling out. When I drive for 8 to 10 mins. Than the bad idle comes back. It's really low and will stall as soon as my foot is off the gas. If I keep it going for a couple of minutes like this... than pull over to stop, trun the car off and wait couple of minutes and restart the car, The idle is perfect and it will stay that way until I let the engine get cold again. I guess this means that changing the Mass Air Flow meter did do something but there must be something happening early on that the computer doesn't understand until it warms up a bit... any thoughts would be appriciated Is there any codes being sent to the computer. I might suspect a problem with the Air Intake Temp sensor. > I changed the Mas Air Flow meter. Now the experience of the bad idle > is 100% predictable. I mean replaying the Mass Air Flow changed the [quoted text clipped - 13 lines] > computer doesn't understand until it warms up a bit... any thoughts > would be appriciated I'll have to get that scanned. Right now no lights stay on. Is that sensor easy to find and replace? "" wrote: > Greetings > [quoted text clipped - 27 lines] > > Thanks I just started having the same exact problem with my 2001 Sentra GXE 1.8. I just purchased some fuel system cleaner to add to the gasoline. I was hoping that this would be the fix but now I have my doubts. I guess I will be taking it into the service center at the end of this week if it does’t get better. I will keep you updated as to anything further. > I just started having the same exact problem with my 2001 > Sentra GXE 1.8. I just purchased some fuel system cleaner to > add to the gasoline. I was hoping that this would be the fix > but now I have my doubts. I guess I will be taking it into the > service center at the end of this week if it does't get > better. I will keep you updated as to anything further. I have also been having this problem on my 2001 Sentra GXE for about 3 months now and I can’t find anyone who knows how to fix it. However, on my car the problem goes away as soon as the air conditioner is turned on. If anyone has any ideas or actually figures out how to fix this problem it would be a huge help to me. > I have also been having this problem on my 2001 Sentra GXE for > about 3 months now and I can't find anyone who knows how to > fix it. However, on my car the problem goes away as soon as > the air conditioner is turned on. If anyone has any ideas or > actually figures out how to fix this problem it would be a > huge help to me. Right after I started having the problem I poured a bottle of fuel system cleaner in a full tank of gas. That was just on the 29th and it seems to have solved the problem for now. The rpm’s are staying much higher now. I barely even used enough fuel to really clean it good and it helped. I sure hope that is all it is. This is really dangerous though, I could be going 60 miles per hour and have to stop for a redlight and lose my power steerig and breakes. So, if this doesn’t fix it then I am definatly going to the shop. > > I have also been having this problem on my 2001 Sentra GXE for > > about 3 months now and I can't find anyone who knows how to [quoted text clipped - 12 lines] >and have to stop for a redlight and lose my power steerig and breakes. >So, if this doesn’t fix it then I am definatly going to the shop. sounds like the MAF for the intermittent idle... my '01 GXE does it all the time and for now turning on the AC or the fan will level the idle to ~1000 RPM with no bobble. I have also had the 'SES' light come one with bank (1 or 2) lean. still in denial since a new MAF runs about $500 from the dealer. a while ago it randomly died on the highway, i'd pull over and turn the car off, turn it back on and it was fine for a while then it would do it again. seems there is a recall on '01 GXE crank position sensor, took it to the dealer and they repaired it for free. thanks when they showed me the air mixture from the MAF printout. and offered to fix , but i figure i can live with the idle for now. i still get 33-35 mpg. If the SES light comes on you can take the car to advance auto and ask at the parts desk for their OBD II code reader the'll lend it to you and print out the results and clear the light. hope it helps. I found a brand new OEM MAF for my Sentre SE for 89.99US at Nissan Courtesy Parts http://www.courtesyparts.com/secondtier_b15.html not sure, what the price is for the MAD the GXE. If you call they will tell you. Anyway, $89.99us + $15 shipping + $30 duty... is better then the $600+tax Canadian for the part I was quoted at Nissan... Take care "" wrote: > On 31 Aug 2005 18:41:02 -0400, Nathan > <DoNotEmail@AutoForumz.com> [quoted text clipped - 58 lines] > > hope it helps. I still have not had the SES light come on, this is part of the reason why the mechanics I have had look at it can’t seem to figure out what is going on. If it is in fact the MAF and I need a new one, it will have to wait for a little while, seeing as how I have already dropped nearly $400 on attempting to fix this problem. I guess for now I will run the A/C until it is cold enough to run the heater, that should delay the problem long enough for me to save the cash to replace the MAF. > I still have not had the SES light come on, this is part of > the reason why the mechanics I have had look at it can't seem [quoted text clipped - 5 lines] > problem long enough for me to save the cash to replace the > MAF. Thanks for the update. Mine is currently at the dealership so I should figure out what they think is wrong this afternoon and will update the post. |
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