my6thgen 04-08


OEM Part Number: 22630-44B20
Price: $20.00-$30.00

On the 4th Generation Maxima engine the Engine Coolant Temperature Sensor is located in the water outlet tube close to the engine end of the upper radiator hose. There are two sensors in that area. The one nearest the hose is for the dashboard temperature gauge. The ECTS, the one you’re interested in, is right next to the the gauge sending unit. There is a good picture of these sensors in the Haynes manual on page 3-7.

With the engine cold, disconnect the ECTS and measure its resistance. Reconnect the ECTS, start the engine, run it until fully warmed up. Stop the engine, and repeat the resistance measurement. The “warm” reading should be a much lower value than the “cold” reading.

The specs for the ECTS are:

  • Engine coolant temperature 68F, ECTS resistance 2.1 – 2.9 Kohms
  • Engine coolant temperature 194F, ECTS resistance 0.24 – 0.26 Kohms

Replacements Symptoms/Notes:

  • Below about 30 degrees idle will die if I don’t keep my foot on the gas at startup. Once engine is warm it’s OK.
  • Just a quick update for anyone having the same problem. Replaced the CTS (ECU Temp sensor in the picture) and guess what? My multi-year cold start problem is OVER! She runs like new again. Over $1000 spent on MAF, TB cleaning, and more and all I needed to do was replace a $9.00 sensor.

Owner: cineMAX

Year: 2008
Model: Maxima
Color:  White
Transmission: CVT
Trim: SE

Mod List:

  • 800w California Amp
  • 10″ JL Audio 10W6 Sub
  • 5″ Rear Seat Sub Port
  • 18″x8″ Cruiser Alloy Blackhawks
  • Onyx Painted Roof and Trunk
  • SE-R Styled Grille
  • SE-R Trunk Logo
  • Reprogrammed Computer
  • Roof Spoiler
  • LED Tail Lamps
  • Clear Door Lamps
  • LED Interior Lamps
  • LED Trunk Lamp

Owner: Mike aka KCMAXX

Year: 2004
Model: Maxima
Color:  White
Transmission: 5-Speed Automatic
Trim: SE

Mod List:


  • Hybrid Fujita Intake
  • NWP Block-off Plate
  • Custom Grounding Kit
  • Custom Catback/Magnaflow 14816 Mufflers


  • Progress Springs w/Stock
  • Progress Rear Sway Bar
  • Stillen FSTB


  • 20×8.5 & 20×10 DONZ Genovese
  • Sumitomo HTZR II, 245/35 Front and 255/35 Rears


  • Painted Dash/Trim/Center Console
  • 7″ NESA Screen
  • Full LED Conversion with Added LED’s
  • Diamond Plate Floor Mats
  • Cut and Fitted Shift Knob


  • Painted/Decaled Calipers
  • Drilled Rotors
  • Painted Rear Bumper
  • Shaved Trunk
  • 4 Grilles
  • LED Plate/Stop/Blinker
  • White LED Underglow Lights
  • Independent PIAA ION Yellow Gogs
  • 8000K HIDs
  • Iconic Rear Window Spoiler
  • 72 LED 3rd brake Light
  • Fully Painted Engine Bay
  • Custom LED Mirror Lights
  • Chrome/Amber Front Marker Lights
  • Body Colored Front Bumper

Owner: Gabriel Rodriguez aka lynivv

Year: 2005
Model: Maxima
Color: Tan
Transmission: 5-Speed Automatic
Trim: SL

Mod List:


  • Manzo 3.5 Altima Headers and Y-Pipe
  • Custom 3” Cat-Back with Apexi N1 Muffler and Vibrant Ultra Quiet Resonator
  • NWP Plenum Spacer
  • NWP VIAS Block-off Plate
  • AdminTuning 3.5” intake


  • TruHart Air Struts
  • Airlift 3P Management
  • TruHart camber arms
  • Z1 Toe Arms
  • Megan Racing Strut Bar
  • Red Lion Nylatron Motor Mounts


  • Ikon Motorsports Lip (EzKonceptz Replica Modified by Jason Lyrics)
  • Spec D Headlights Black with Oracle Halos
  • IPCW Tail Lights Black Bermuda
  • Stillen Side Skirts
  • CMOD Mesh Grille
  • Work LS207 3-Piece Wheels
  • 07-08 Spoiler Gloss Black with Gold Ice Pearl