BHP increase resistor

Cheers fella's for the info, if you look on ebay and search for niissan almera you get a lot of these resistors up for sale. I think for the small amount of money you pay people are prepared to take the risk. If it does not work well you would most likely bin it or try and get a refund.

The question is those who have bought these units have come back with positive feedback. Maybe he's got lots of friends.

Good thing I asked the question beforehand otherwise I would have fallen victim to this.

Always knew I'd get sound advice from AOC :lol:
 
Tech1_uk said:
I'm going to get slatted for this........

In theory they work and to a degree they will work in practice.... Now before you yell bollocks...... think about it

The resistor is changing the reading back to the ECU. Now lets have a example A N16 air temp sensor runs at 5v input through the sensor which is a resistor and feeds back to the ECU. Lets say at 10C you have 2 ohms of resistance the ECU may read the as 2.5 volts. so at 20C you have 1 ohm of resistance the ECU may read this as 3.5 volts. So if you add the resistor to bring it back down to 2 ohms at 20c the ECU will see it at 2.5volts therefore work out you have cold air going in and will increase the injection pulse to add more fuel.... as in older cars with a manual coke. Now depending on the Map and the sensor of the ECU will depend on if it will work. On A n16 you would see a quick change on the fuel injection pulse until the coolant temp sensor and the O2 sensor work out that the air temp sensor is a bit of a liar !
Now I'm not say that you would see a 5+ BHP gain because you won't but people with or have had a K11 micra may have had a flooding problem from cold start, this was fixed with a modified harness...... "A resistor" totally same theory as this.....

( Suppose I best get me coat and leave the room :rasp: )
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your obviously way more technical than me..but if it increases the injection pluse and there isnt more air wont this make it run rich? and how would this increase fuel economy..the only way to properly increase power using the ecu is to get something like an apexi AFC.
 
Voyager1701 said:
The question is those who have bought these units have come back with positive feedback. Maybe he's got lots of friends.
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i'd say alot of the people who buy these things are absoloutely brain dead... they'll stick it on and it'll just make them think 'oh yeah.. i can feel a bit more pull on it..' thats probably why he has got such good feed back... theres other ones you can get on ebay that resemble a knob off a cooker.. i mean ... ffs, how can there still be people out there that fall for this!!
 
Also, not many Almeras actually have air temp sensors. Those that do, do they actually alter the injector pulse when fiddled with Steve ?? The MAF measures air density so accounts for air temp and volume unlike a MAP sensor that also needs the air temp to work out the actual air.

I thought the air temp sensor just measured air temp and if too high it didn't check cat operation/rear O2 sensor.
 
right il admit it, i brought one for my almera 1.4 like 5 years ago when i was a teeny bopper!!!

I know the shame of it!!!!

I thought omg this thing is fuckin rapid with it on.....

Got home and opened my bonnet and it had fallen off lol, so its all in your head!!!
 
TallPaul86 said:
Hey that was a legendary thread - just too bad it wasnt a Sticky in the Muppet Post section
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Yeh but if you get a 3 series convertible or a posh merc then you would pull.
 
All n16 qc engines have got a air temp sensor whether it be in the air pipe or build into the MAF. You are right in saying it will run rich but it depends on how much fuel is injected for the small change in temp. Also as I pointed out the coolant temp and o2 sensor feed back to the ECU will cut injection pulse if they see things running rich and not within spec.
As for fuel economy, forget it that is long gone !!!!
 
Tech1_uk said:
As for fuel economy, forget it that is long gone !!!!
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It never had good economy - the fucking things weigh bout the same as a mid-Victorian church and handle like one

You CERTAINLY dont buy one for economy
 
TallPaul86 said:
It never had good economy - the fucking things weigh bout the same as a mid-Victorian church and handle like one

You CERTAINLY dont buy one for economy
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I usualy get around 43-45 mpg from mine, even if I blatt it about a bit! (went from Clacton to Sunderland on 3/4s of a tank & rarely went below 85 :P (OK, that`s not great, but it`s OK, lowest I`ve ever got is 38.7 from 50-ish litres of Tesco crap! :mad: )
 
Almera Guy said:
I usualy get around 43-45 mpg from mine, even if I blatt it about a bit! (went from Clacton to Sunderland on 3/4s of a tank & rarely went below 85 :P (OK, that`s not great, but it`s OK, lowest I`ve ever got is 38.7 from 50-ish litres of Tesco crap! :mad: )
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Is yours a diesel? A minimum of 38mpg is great!
 
Almera Guy said:
I usualy get around 43-45 mpg from mine, even if I blatt it about a bit! (went from Clacton to Sunderland on 3/4s of a tank & rarely went below 85 :P (OK, that`s not great, but it`s OK, lowest I`ve ever got is 38.7 from 50-ish litres of Tesco crap! :mad: )
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40-45 miles to gallon from mine, all dependant on what sound system i have in at the time :roll:
 
i get around 27mpg :S with it running shit until i get round to fixing everything related to cam sensor errors.
 
Please don't drag threads up from the dead that are over 5 years old! :)

Your comment doesn't look related to the thread title either, but just so you know those resistors do nothing. If they did so something it won't be good for the engine.
 
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