Table of Contents
Throttle specs & swaps
missing comparison image
CG13DE & GA15DE throttle body comparison
Standard CG10DE / CG13DE throttle body
- Diameter 45mm
GA15DE throttle body
- Diameter 50mm
- Bolt on swap to CG motor
UK spec GA16DE throttle body
- Diameter 50mm?????
- This version of the GA16DE is completely different to the Australian, Japanese, USA version.
MAF repairs
The following are good indicators of faulty temperature sensor and/or MAF problem
- the check engine light coming on either all the time or intermittantly,
- motor running rough,
- cutting out,
- not starting reliably,
- engine miss
- excessive fuel consumption, i.e. 30mpg = 9.4L/100km or worse.
Resoldering
Board interconector
Missing board connector image
Nissan throttle body MAF board interconnector
As well as dry joints on the MAF circuit boards, the board interconnector can also cause trouble. Symptoms symptoms are similar. What happens to the idle when you give the throttle body a whack with the back of a screw driver?
If you go the CONSULT route, you'll be able to see what's going on, i.e. -airflow & fuel jumping up with no change in throttle position while driving on a level road at constant speed. -weird/inconsistant airflow readings at idle\ Take apart as described above. Desolder the 3 wires on the right that go to the plug Remove all the screws. Remove circuit boards, MAF hotwire will slide out too. Wiggle board interconnector. A squirt of a non residue electrical cleaner on the hotwire probably won't hurt at this stage either. Resasemble.
Also see picture with numbered steps & instructions.
Cleaning the idle control valve
Take it apart.
Clean all the black gunk out.
Reassemble, make sure there is no grit left inside which can jam it.