Electrical load causing idling issues. Please help.

[JCBalunsat]

The whole story:

I've had a tune up about a week ago and these are the things that has been done. I've opted for tune up since i had idling issues.

- Tappets adjusted (quite mode )
- Throttle body cleaned
- Intake Manifold cleaned
- New set of spark plugs

After this, I installed new H4 bulbs on my ride (100w/90w) No harness, no relays, no nothing.

Everytime I turn on the headlights and the air conditioning, the idle goes down (which i know is normal) but when I go turn the wheel, the idle goes down to 500 and car starts to vibrate. As per my assesment, the car vibrates only when I do this things and when the A/C and HL are not on, idling is a lot better.

Where do I start from here? What do I need to check / replace and how much would it cost me? TIA :

[iho250]

similar problem here...

lights all on...idling goes down when i step on brakes

but this only happens when all lights are on (HL)

[yapoy86]

if you turn on your lights, especially using a 90/100watts rating lamp, your alternator load will definitely increase due to high electrical current needed to supply your current load... one solution is have your lights back to stock 55/65watts rating or have your idling increased to compensate the alternator load when you turn on your headlights..

your alternator does'nt have the idle-up function just like to your airconditioning system wherein the idling is automatically increased when you turn on the aircon...

when you have high electrical current load just like having an over rated lamps, plus the load of your power steering pump when you turn the steering, your normal idling speed will be affected since the alternator and power steering does not have the idle up function...

[JCBalunsat]

if you turn on your lights, especially using a 90/100watts rating lamp, your alternator load will definitely increase due to high electrical current needed to supply your current load... one solution is have your lights back to stock 55/65watts rating or have your idling increased to compensate the alternator load when you turn on your headlights..

your alternator does'nt have the idle-up function just like to your airconditioning system wherein the idling is automatically increased when you turn on the aircon...

when you have high electrical current load just like having an over rated lamps, plus the load of your power steering pump when you turn the steering, your normal idling speed will be affected since the alternator and power steering does not have the idle up function...

So the question is what do I have to do retain the wattage of the lamps and at the same time not pump up the idle? Is there any other way? Like for example changing the alternator to higher ratings or maybe installing a relay kit for the lamps? Grounding kit perhaps?

[[archie]]

So the question is what do I have to do retain the wattage of the lamps and at the same time not pump up the idle? Is there any other way? Like for example changing the alternator to higher ratings or maybe installing a relay kit for the lamps? Grounding kit perhaps?

sir we have the same wattage for the headlights and also have the 2000 model lxi pero no such problem sa ride ko. in my case, i have a basic sound setup, foglights stock bulb and 100/90 headlights. you can still retain the bulb, installing a ground kit might help solve the problem. im yet to do the upgrade but upon reading the reviews for the ground kit, its worth a try na rin.

you might have weak grounding na, considering the age (same goes with my car) baka may rust bulid up na.

having a change in alternator would be expensive na and i think it can hold the load naman... we have the same alternator rating.

[iho250]

so grounding is the best option...

thanks sir! will try! :thumbup:

[JCBalunsat]

sir we have the same wattage for the headlights and also have the 2000 model lxi pero no such problem sa ride ko. in my case, i have a basic sound setup, foglights stock bulb and 100/90 headlights. you can still retain the bulb, installing a ground kit might help solve the problem. im yet to do the upgrade but upon reading the reviews for the ground kit, its worth a try na rin.

you might have weak grounding na, considering the age (same goes with my car) baka may rust bulid up na.

having a change in alternator would be expensive na and i think it can hold the load naman... we have the same alternator rating.

So grounding lang? Grouding Kit lang kaya ang katapat?

[[archie]]

So grounding lang? Grouding Kit lang kaya ang katapat?

well havent tried it yet, pero when it comes to headlight wattage lang naman ang extra load... ok na yung ground kit. i have fluctuating lights everytime my subs go boom pero sabi sakin ng electrician, kayang kaya ng alternator yung sounds ko... kulang lang daw sa ground kaya ganon, so what more if headlights lang naman...

its worth trying na din for the price, around 800 to 1200 ang ground kit.
im having mine installed after the holy week, will update what happens.

[blacksun25]

return to your stock bulbs at tignan mo kung aayos yung idling mo. kung umayos e di related nga siya doon sa bagong bulbs na kinabit mo. you may have to install a relay for the bulbs.

[JCBalunsat]

well havent tried it yet, pero when it comes to headlight wattage lang naman ang extra load... ok na yung ground kit. i have fluctuating lights everytime my subs go boom pero sabi sakin ng electrician, kayang kaya ng alternator yung sounds ko... kulang lang daw sa ground kaya ganon, so what more if headlights lang naman...

its worth trying na din for the price, around 800 to 1200 ang ground kit.
im having mine installed after the holy week, will update what happens.

Hope to hear from you soon coz this idling issue has been bugging me for quite some time. Ako siguro dadalin ko sa electrician sabay na din sa mekaniko para makita lahat before good friday comes in. Will also update you guys on what happens. Wish me luck.

[[archie]]

return to your stock bulbs at tignan mo kung aayos yung idling mo. kung umayos e di related nga siya doon sa bagong bulbs na kinabit mo. you may have to install a relay for the bulbs.

hmmm... this might help din para malaman kung talagang headlights ang culprit ng idle down.

Hope to hear from you soon coz this idling issue has been bugging me for quite some time. Ako siguro dadalin ko sa electrician sabay na din sa mekaniko para makita lahat before good friday comes in. Will also update you guys on what happens. Wish me luck.

good luck sir, ako din will give feedback what happens after the ground kit.

[wewoy_romero]

install a grounding kit. kahit yung mumurahin lang as long as the wires are thick enough and tama yung pinagkakabitan. this is a non-expensive way to solve your problems. pakabit ka rin ng ceramic sockets and relay kits for your headlight bulbs. you wouldn't want to melt your sockets and also not be able to fully utilize the higher wattage pag nakastock ka lang.

[kinyo]

If indeed a grounding kit would fix the problem, it simply means that there is a poor grounding contact in the original wiring. The poor contact appears like a low resistance but enough to cause voltage drop and affect engine performance (some sensors and actuators are not getting correct voltage).

It might be best to find that poor ground contact. It may not be an easy troubleshooting task, but it is technically the proper way to fix the problem. Grounding kit is the lazy man's way.

If a grounding kit does not fix the problem, there is still a possibilty of poor contact along the 12V supply lines.

[JCBalunsat]

Hay grounding kit.. Wala pa kasing pera e. Need ko pa pa timing belt. Sana may bumagsak na grasya. Will update you guys when I have a grounding kit already.

OT: san pala ang mga tamang points na paglalagyan ng ground. All I know is you should connect it to the negative pole on the battery. Hehe.

[yapoy86]

near the negative wire from the battery makikita mo yung main wire is attached dun sa engine or transmission mo, then meron wire ka makikita (branch out) from the main ground wire naka attach sa body ng car... instead of using grounding kit pwede ka na bumili ka ng makapal na wire mga gauge 10 and heavy duty terminals and lugs then connect mo sa negative ng battery tapos hanap mo ng other connection point sa body ng car (aside dun sa original ground wire mo), remember that ground wires should be maintained as short as possible... 1 meter wire is max

your alternator works the same way as a generator.. pag walang load yung system magaan lang ikot nyan, but when you add electrical load like high wattage headlight lamps bibigat yung ikot ng alternator causing the engine idle to lower... also check mo yung connection the charging wire from the alternator to the (+) ng battery.. loose connections will lead to high current loss...

changing your alternator to high amps rating is not guaranteed to solve the problem since dadagdagan mo lang din ang load ng engine at idle...kung gusto mo pa din retain yan high wattage bulbs mo eh pa adjust mo din idle speed to compensate pag switch mo ng lights...

[yapoy86]

near the negative wire from the battery makikita mo yung main wire is attached dun sa engine or transmission mo, then meron wire ka makikita (branch out) from the main ground wire naka attach sa body ng car... instead of using grounding kit pwede ka na bumili ka ng makapal na wire mga gauge 10 and heavy duty terminals and lugs then connect mo sa negative ng battery tapos hanap mo ng other connection point sa body ng car (aside dun sa original ground wire mo), remember that ground wires should be maintained as short as possible... 1 meter wire is max

your alternator works the same way as a generator.. pag walang load yung system magaan lang ikot nyan, but when you add electrical load like high wattage headlight lamps bibigat yung ikot ng alternator causing the engine idle to lower... also check mo yung connection the charging wire from the alternator to the (+) ng battery.. loose connections will lead to high current loss...

changing your alternator to high amps rating is not guaranteed to solve the problem since dadagdagan mo lang din ang load ng engine at idle...kung gusto mo pa din retain yan high wattage bulbs mo eh pa adjust mo din idle speed to compensate pag switch mo ng lights...

[wewoy_romero]

*kinyo
yep, adding grounding kit is the shortcut method hehe.

*yapoy
eto ang tama, replace the stock grounding with thicker and shorter wires. matrabaho nga lang. baka kasi corroded na ang mga wires so di na maganda ang connection

*jcbalunsat
here's a link telling you what to buy and how to DIY your own grounding kit. should cost you less than P200. kung wala ka mabili na heatshrink tubes, try mo electrical tape (what i did for my other grounding kit, overpriced yung P1k na gastos ko dati sa ready made na kit). note lang, i soldered the end of the wires sa eye terminals.

[JCBalunsat]

Nakakatakot kasi pag mali yung points e. Balita ko makaksira ka ng kung ano ano. Anyway, I'll decide when I have money to burn but most probably, i'll buy the kit since it looks better. Medyo maarte talaga ako pag dating sa kotse.

[glenngj]

same problem pero mine is kung bukas lang ang a/c ano po kaya ang cause nito? tia

[[archie]]

same problem pero mine is kung bukas lang ang a/c ano po kaya ang cause nito? tia

sir may tama yung idle up kaya ganyan.