CMF_jonny A
» CMF Member
i race a nissan micra we only use 1st and 2nd gear so the car does get warm ... today the car kept loosing power ... does any one know what could be wrong.
k11 power loss problems
- Thread starter CMF_jonny A
- Start date
CMF_Yom2
» CMF Memberif it is a CG10 or 13 then there's really only two things on the engine which could really cause a power issue in 1st and 2nd gears AFAIK
one is the distributor which has an integrated Coil and cam (crank) angle sensor both which are prone to heat related failure on the CG10 and CG13. Replacement is typically the fix, a whole new distributor assembly. My experience with this is that when it begins to cause problems the engine will begin to miss and then eventually stall out and not be able to be restarted until it has cooled down.
two is the air flow meter which is integrated into the throttle body. These can sometimes be pulled apart and the circuit board re-soldered to resolve the issues but some do just need to be replaced. This is likely to be your problem. There is some coolant routing to the TB you will see around the back, i think these are here to prevent the butterfly from icing up in cold climates - you could probably block these coolant lines to reduce the temperature of the TB which might extend the lifespan of the circuit board.
The 02 sensor could be a possibility but I think it is used more for cruise emissions rather than acceleration. there's a few other temp sensors on the motor and a neutral and reverse position switch on the gearbox but i doubt any of these could cause you problems.
one is the distributor which has an integrated Coil and cam (crank) angle sensor both which are prone to heat related failure on the CG10 and CG13. Replacement is typically the fix, a whole new distributor assembly. My experience with this is that when it begins to cause problems the engine will begin to miss and then eventually stall out and not be able to be restarted until it has cooled down.
two is the air flow meter which is integrated into the throttle body. These can sometimes be pulled apart and the circuit board re-soldered to resolve the issues but some do just need to be replaced. This is likely to be your problem. There is some coolant routing to the TB you will see around the back, i think these are here to prevent the butterfly from icing up in cold climates - you could probably block these coolant lines to reduce the temperature of the TB which might extend the lifespan of the circuit board.
The 02 sensor could be a possibility but I think it is used more for cruise emissions rather than acceleration. there's a few other temp sensors on the motor and a neutral and reverse position switch on the gearbox but i doubt any of these could cause you problems.
CMF_Mike R
» CMF MemberI think the coolant tubing to the TB is to warm up the TB on start up , this is so that the air/fuel mix's better and reduces emissions . My car started off with a heated TB ..now has a older unheated tb with no noticeable driving differences and some blocked off pipes !!!
I agree the heat around the engine is not suitable for the electrics and I have noticed on a lot of vehicles ,the air flow sensor is built into the air ducting well away from the engine .
I agree the heat around the engine is not suitable for the electrics and I have noticed on a lot of vehicles ,the air flow sensor is built into the air ducting well away from the engine .
CMF_jonny A
» CMF Memberthanks guys il try those tomorrow and let you`s know if it has sorted our problem or not many thanks jonny
CMF_jonny A
» CMF Memberi was thinking could the problem be caused by the e.c.u .. could it be faulty.