QG owners united

crossdrilled · Posted: Sat Jan 12, 2008 6:31 am Post subject:

joel, There are many mango tree mechanics (Including mine) that tell you not to replace the thermostat. Don't listen to them. If that was the last thing you did to your car, install a new thermos (Original Nissan, and prefferably before your block cracks) and see what happens. If you had this problem before you removed the defective thermos, the heat may have done damage to your engine or cooked some oil.

What made you think that your thermos was defective in the first place? Overheating?

Do you run on water or coolant mix?

cacasplat3 · Posted: Sat Jan 12, 2008 7:27 pm Post subject:

well i wasent going to remove the actuator from the tb.....that could be troublesome...... Neutral

anyways dropped the car by the dealer today, he did an ecu scan and cleared the ecu or sumthing so and it working normal now Confused

KE70corolla · Posted: Sat Jan 12, 2008 9:01 pm Post subject:

For the QG owners out there..check out these sites

http://www.courtesyparts.com/sentra/B15_specs.html

http://www.b15sentra.net/forums/showthread.php?t=138216

Nissan QG15DE · Posted: Sat Jan 12, 2008 9:11 pm Post subject:

what spray can i get to use on my throttle body to clean it?

Advil · Posted: Sat Jan 12, 2008 9:31 pm Post subject:

QG13 owner...

does changing headers and stuff make a difference?

automatic btw

eitech · Posted: Sun Jan 13, 2008 11:00 am Post subject:

you can use a carbeurator & fuel injection intake cleaner on your throttle body. jus ask for it in any auto shop..it dissolves accumulated gum and deposits well

cacasplat3 · Posted: Sun Jan 13, 2008 5:43 pm Post subject:

^^^^make sure its a throttle body cleaner, cuz some idiot sprayed a carb cleaner to clean the TB on the cefiro and now its sticking closed........reason is that the TB cleaner has a lubricant in it and it is electronics safe, carb cleaners arent Wink

Knight1 · Posted: Sun Jan 13, 2008 7:43 pm Post subject:

joel · Street 2NR Joined: 22 Apr 2007 Tech posts: 85 My 2NRide:

bhagan, I change the thermostat and the thermoswitch...original nissan parts. but I think something wrong electrically cause the new thermoswitch still not puttin on the fans. anyway that should get sort out this afternoon. i clean the throttle body, change spark plugs..still gettin the shudder. the guy from "the motorist" a nissan parts dealer gave me an injector cleaner to use. I feel is muhinjectors because it shudders then at the last minute it starts to move fine. so i feel is that the engine not gettin gas...what yuh think. i gona try the injector cleaner and see if that make a difference by the time the tank finish. that should be by thursday. So then if it aint make a difference, ill go to the mechanic and let them clean it

crossdrilled · Posted: Mon Jan 14, 2008 3:12 pm Post subject:

joel, Hope that situation get sorted out, but did you do an ECU scan? It would tell you if the temperature sensor is bad. I clean injectors off of the car for better results than any fuel tank addative. U check that air filter as well?

cacasplat3, Glad to hear about the ECU reset working.

As for the throttle body cleaner, there are many products on the market which are billed as safe for TB, carb, sensors and O2 sensor safe. To me it does not matter if it has a lubricant or not because I put a drop of singer sewing machine oil on each end of the shaft when i am done. I use cyclo cleaner, and I do find it works better than a few others I have tried. Gum solve is powerful also.

Nu_2Nr · Posted: Wed Jan 16, 2008 11:55 am Post subject:

love d qg, fuel economy, quiet, low maintainence, but too much dam sensors!!!!! rather the ga for this reason

ilovebeti · Posted: Wed Jan 16, 2008 7:08 pm Post subject:

Nissan QG15DE · Posted: Wed Jan 16, 2008 10:19 pm Post subject:

thanks, good info there ppl.

ladiesman217 i've never came across a QG13DE with Extractors (Headers) but i have run one with a cold air intake, and it performs really good. Just ask chipz...he's got an AD with a QG13 motor and he installed IRRIDIUMS as well as an intake kit, and his car pulls good....but chipz, you still not ready Very Happy

crossdrilled · Posted: Thu Jan 17, 2008 7:36 am Post subject:

Nu_2Nr · Posted: Thu Jan 17, 2008 12:17 pm Post subject:

crossdrilled · Posted: Thu Jan 17, 2008 12:31 pm Post subject:

The CP sensor cut the car off at that speed??? I thought that it would go into safe mode if that happened (not revving above 2000RPM). I don't think that the tach would have died though, I will question that.

I have changed most of my sensors already, so I know the symptoms of just about every failure at over 200,000K on my QG18 Smile

Nu_2Nr · Posted: Thu Jan 17, 2008 12:38 pm Post subject:

hmmm i seee, well i wasnt there and based on wat you said, it is a bit questionable.... Neutral

crossdrilled · Posted: Thu Jan 17, 2008 1:40 pm Post subject:

Nissan QG15DE · Posted: Fri Jan 18, 2008 6:29 pm Post subject:

What's the CP sensor?

achillies · Street 2NR Joined: 23 Feb 2005 Tech posts: 82 My 2NRide:

bhagan sin u have experience with the sensors dying, help me outi hav a qg 15 and i am having a problem with the throttle body sensors, there r 2 and when the r both pluggged in the car hesitates and cant go past 20 kmh and thats with stop and go motion, but when i unplug the bottom of the 2 sensors the car works perfectly what does this mean.