Electrical issues, High idle, stalls when brake is applied. (Page 3/4)
Patrick JAN 11, 05:07 PM

quote
Originally posted by theogre:

And you like others assume PFF Smilies are easy to "read" let alone what they mean.



It's not my problem if people are out of touch and/or choose to read PFF posts on their phones.

Alright alright, you've made your point.

Seems to me though that specifically referencing that the battery voltage on a running engine was more than 2-1/2 volts below what it should be was enough of an indication that there is a problem that needs to be dealt with... no matter what joking comment and/or winking smiley face I used afterwards.

[This message has been edited by Patrick (edited 01-11-2023).]

PhatMax JAN 11, 05:31 PM
Note to self……. Don’t use emoji’s with the Ogre..
theogre JAN 11, 08:47 PM

quote
Originally posted by Patrick:
It's not my problem if people are out of touch and/or choose to read PFF posts on their phones.


quote
Originally posted by PhatMax:
Note to self……. Don’t use emoji’s with the Ogre..

Guys isn't just me or people using phones or smaller tablets w/ best screen you can get now. And isn't new issue. Even w/ old CRT could happen w/ better monitors and higher res.

The majority of Desktop PC now have high res panels but not big screens because of cost, space or both.
Most max at ~ 19" standard and ~ 23-25" wide formats regardless of res because of space. More so w/ multi screens.

I have HP 2311x wide, 1920x1080, and very old Dell 1901FP, 1280x1024, LCD panels on 1 PC.
Now guess which panel is physically smaller then the other....
Click for the obvious answer, AKA as Windows would show in Screen Resolution

Bigger panel has Bigger Pixels (ignore actual terms. doesn't matter.)
And just dragging any window is like auto zoom in or out depending which direction you drag.
If the big screen w/ 12pt Times is easy to see... drag to the small screen and like font size dropped to 10pt or smaller.

When I need WYSIWYG from MS Word that matches even close to any printout. I use the bigger panel.

Worse. Windows and likely bad data from monitor makers makes problems w/ people that can't use same monitor for multi screen setups for most reasons. So when in "Change the appearance of your displays" the screens shown often do not meet reality and when the cursor changes screen then cursor hangs up or jumps up or down.
Zach85GT JAN 12, 03:26 PM
So ummm, I started the car to get the car on blocks so I can get the jack under it, I diddn't want to shut it off right away for obvious reasons, So I let it run for 10+ minutes before checking the Voltage at the battery... 14.4v
Car sounded perfect, Idle sounded steadier than ever. I was suspicious, so I turned on all accessories and voltage was at a respectable 13.3v(Keep in mind I still have old SI alt and that sucks at charging while idle) and The stalling when I press the brakes was no longer an issue. So I took it for a drive to get gas and see if anything would go wrong. It was perfect. I did still have the headlight motors disconnected. How can I diagnose this as the issue ? I hate when issues seem to just disappear, because just the other day I was getting a below 12v reading without doing anything in-between. Could I just have pulled a really really stupid moment and tested the voltage before the alt started to charge ? Thanks for all the input guys!

Also I just wanted to say one thing to Patrick and ogre, 1st. I have lots of respect for you both because you guys have been working on Fierro's before I was even a thought.
2nd. I have been snooping on this forum for a bit and have seen alot of good things from both of you, But for some reason when you guys start to reply to the same topic, you guys compete with each other .
Just give each other a neg rating and Work TOGETHER to trouble shoot because sheesh, 32k+ post from each = 64k+ things each of you have seen that's a lot of knowledge I could only wish to have...

Anyways, now that I know my alt is okay (I think lol) how do I figure out if my headlight motor is the thing actually draining my battery ?

Thanks for the help and advice so far everyone!
Patrick JAN 12, 04:09 PM

quote
Originally posted by Zach85GT:

Also I just wanted to say one thing to Patrick and ogre, 1st. I have lots of respect for you both because you guys have been working on Fierro's before I was even a thought.
2nd. I have been snooping on this forum for a bit and have seen alot of good things from both of you, But for some reason when you guys start to reply to the same topic, you guys compete with each other .
Just give each other a neg rating and Work TOGETHER to trouble shoot because sheesh, 32k+ post from each = 64k+ things each of you have seen that's a lot of knowledge I could only wish to have...



Don't read too much into the kibitzing between The Ogre and myself. I have nothing but respect for The Ogre, dating back to the start of this forum in 1999. Just because we may disagree occasionally on a topic doesn't mean we're fighting. People have different ways of looking at things, and different ways of tackling an issue. If we all agreed on everything, life would get awfully boring.
Patrick JAN 12, 04:19 PM

quote
Originally posted by Zach85GT:

Anyways, now that I know my alt is okay (I think lol) how do I figure out if my headlight motor is the thing actually draining my battery ?



As Joseph mentioned Here, the offending headlight motor probably gets warm from continually cycling on and off (until it kills the battery).

Since you've now got the motors disconnected, I suspect that putting a test light into the circuit (at the disconnected plugs) would tell you which motor is drawing power (when it shouldn't be).
TheDigitalAlchemist JAN 12, 04:20 PM

quote
Originally posted by Patrick:

Don't read too much into the kibitzing between The Ogre and myself. I have nothing but respect for The Ogre, dating back to the start of this forum in 1999. Just because we may disagree occasionally on a topic doesn't mean we're fighting. People have different ways of looking at things, and different ways of tackling an issue. If we all agreed on everything, life would get awfully boring.



I recall one moment early on, I thought the Ogre was a big, mean bullyperson - (I mean, look at that username! ) but he was just spelling out some facts related to something. It's sometimes difficult to ascertain intent when reading text. And subteties such as sarcasm sometimes doesn't get detected...

Eskimo.


Hope your Electrical gremlin goes away.

[This message has been edited by TheDigitalAlchemist (edited 01-12-2023).]

Patrick JAN 12, 05:08 PM

quote
Originally posted by TheDigitalAlchemist:

I recall one moment early on, I thought the Ogre was a big, mean bullyperson - (I mean, look at that username! )



The Ogre explained himself back in 2016...


quote
Originally posted by theogre Here:

The Ogre...
Demeanor is always partly to play a role, similar to Shrek, and other reasons and then had a stroke.



I remember when The Ogre first returned here after suffering his stroke. It was plenty challenging for him. I admire his fortitude in coming back from that!
Zach85GT JAN 12, 06:32 PM
Yea your right Partick, I probably did look at that a bit wrong, And yes agreeing with everything is boring.

I will test the draw from that connector and see if plugging it back in will draw power from the battery.
Meanwhile, I was planning on taking the alt out and getting it tested but no need for that anymore. I had already pulled all the wheel well coverings off which was a pain lol... And was thinking about swapping to a CS130 with a adaptor, like many others have. Just one question, Is the CS130 a direct fit on the SI Bracket if the holes are 180* across from each other ? on a 85 GT v6? I know it comes with a lot of benefits and I plan to keep this Fiero for the foreseeable future so in my mind the swap is worth it now.

I was planning to get something like this
https://www.summitracing.co...do-335-1014#overview

Also I'm a bit of a dummy, How do I tell if I have a charging system light. Is that the red battery icon that appears when battery volts are low ?
I don't have a volt gauge, but idk if I have a charging light. Don't mind that question it was probably thought to read sorry...
theogre JAN 12, 10:24 PM
Back on topic...

14.x volt is good...
But have problems charge one day not others can be many things including the alt.

Again, Fix/clean all "grounds" bolted/screwed to engine and frame. 1 or more iffy ground can cause a lot of headaches.
Use silicone or permatex brake grease on them.

And Check/Fix the alt's side plug. If iffy then the "battery" bulb, sense wire or both have problems and not turn on the alt or worse cause high volts.
What the sense wire does?
See my Cave, Alternator Sense

All 85-88 Fiero has a "battery" light. SI and Some CS needs the lamp to work to turn on itself. (84 has hidden "resistor" doing same.)
Ignore Dash Volt Meter for now. Often lies when have real problems and nothing to do turning on the alt.
Do Not "bypass" the "Battery" light w/ just wire. That can blow the alt. You can use a test light to the battery to test the alt.

To test the bulb, unplug alt side plug and ground the Brown Wire. Bulb should be On and full bright.
Do Not touch Red Wire w/ a ground! A short there dumps full power from the battery and can fry fusible links and more.

Dash lights die for many reasons not just a bad/blown bulb.
All are 194 w/ "PC" socket.
Socket can "break" the metal and not connect to bulb, dash or both.
Dash plastics can warp shrink etc and socket won't connect to the board.

"Quick" test is to swap 2 bulbs. May even have spare(s) in 2 unused holes.
Ignore all bulb "maps" because even GM doc's are wrong.
see http://www.fiero.nl/forum/Forum2/HTML/138175.html Instrument panel bulb layout

If someone pulled the big plugs on back of dash... Board copper "glue" can fail and copper can bend/break and no connect or worse short out w/ another "pin."