Idle Low - Electrical Load Causes 700rpm Difference. What Causes?
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3.0 BAR
Joined: Jul 2004
Posts: 2,251
Idle Low - Electrical Load Causes 700rpm Difference. What Causes?
The car is an 88 crx si with a d16a6
The car when warm will idle at about 900-1000rpm, but when I need to turn on the headlights (sidemarkers also tap into headlights circuit) the idle will drop to 400 and the engine wants to die
I also have a power wire coming straight off the battery to a switch and then to multiple assecories in the car (4 gauges, wideband, shiftlight)
When this is turned on it will also lower the idle a good 150 or so rpm
The headlights are Ebay projectors but I never had this problem last year. Why would the car idle so dam low and why would the load make such a difference?
I did just put in a new battery
The car when warm will idle at about 900-1000rpm, but when I need to turn on the headlights (sidemarkers also tap into headlights circuit) the idle will drop to 400 and the engine wants to die
I also have a power wire coming straight off the battery to a switch and then to multiple assecories in the car (4 gauges, wideband, shiftlight)
When this is turned on it will also lower the idle a good 150 or so rpm
The headlights are Ebay projectors but I never had this problem last year. Why would the car idle so dam low and why would the load make such a difference?
I did just put in a new battery
3.0 BAR
Joined: Jul 2004
Posts: 4,028
Re: Idle Low - Electrical Load Causes 700rpm Difference. What Causes?
I neve had that problem with my 90 hatch and it had no electrical load detector 
It did dip the voltage a little at idle as the alterntor doesnt put out ---- all at idle.
It did dip the voltage a little at idle as the alterntor doesnt put out ---- all at idle.
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