this is what my gauge cluster is doing

[davbrucas]

but then why does it start real quick every time i go to crank it on, i would imagine that if it was draining my battery i would have more and more trouble starting it every time i try to start it right? but im not, it just cranks right up every time

The battery can last a while like this if the car's electrical systems arent used much. The length of time the battery will sustain ingnition function is dependent on the capacity of the battery, the level of charge at the start, and the amount of accessory electrical use demanded of it.

[davbrucas]

so davbrucas, your saying i should just go back to the stock alternator?

Try it and see what happens...

[bonnie&clyde]

The car is idling just fine at 500-600 rpm. Bonnie&Clyde you're hitting the gas to show that the volts are jumping with rpm, its not doing that on its on correct?

correct, at first it was, so then i changed the cluster and icr with yours and silverhatch's and it stopped, now its only doing it when i give it gas

[Blue88Coupe]

The cam shouldn't make it idle like that. It should idle at the normal 8-900 rpms.

OP, getting it tuned and bypassing the o2 sensors might fix it IF that's the problem. I'm just stating from personal experience, my car had a very similar symptom when my o2 sensor went out. As long as the o2 sensors are good, there shouldn't be a need to bypass them. I had a H/C/I car with full exhaust, no cats, and didn't bypass the o2 sensors and it ran like a charm.

It has a custom solid roller cam in it. Idle is gonna be choppy

[bonnie&clyde]

The cam shouldn't make it idle like that. It should idle at the normal 8-900 rpms.

OP, getting it tuned and bypassing the o2 sensors might fix it IF that's the problem. I'm just stating from personal experience, my car had a very similar symptom when my o2 sensor went out. As long as the o2 sensors are good, there shouldn't be a need to bypass them. I had a H/C/I car with full exhaust, no cats, and didn't bypass the o2 sensors and it ran like a charm.

im hoping it does, these are brand new sensors so im not sure how they would be bad, but maybe starting the car up without being tuned could have made them gone bad right?? well the shop says they cant tune it with the volts going crazy like this, this is why im trying to figure it out

[jdgregory84]

correct, at first it was, so then i changed the cluster and icr with yours and silverhatch's and it stopped, now its only doing it when i give it gas

Oh, ok. I thought the flux in idle was on it's own. Nevarmindz then. Good luck man. You might try to put the stock alternator back on like the good doctor suggested. It's not exactly uncommon to get a bad alternator. I got a bad one last time I swapped one into my explorer. Got another under warranty and worked fine. Again, good luck. Modding cars = fun, fixing cars = PITA.

[Blue88Coupe]

well the shop says they cant tune it with the volts going crazy like this, this is why im trying to figure it out

Idle it to 2800 and take it to them

[bonnie&clyde]

ok going to look for a stock alt now to see what it does

[Blue88Coupe]

ok going to look for a stock alt now to see what it does

or put the stock pulley back on the crank.

[Blue88Coupe]

Another thing to check maybe is how you have the alternator wired up. The 3g doesnt just hook into the stock wiring harness does it?

[bonnie&clyde]

damn, i forgot i cut the wires to the stock alternator wiring for this 3g alternator ahhhhh FML

[Blue88Coupe]

Where are you taking it for the tune?

[bonnie&clyde]

Another thing to check maybe is how you have the alternator wired up. The 3g doesnt just hook into the stock wiring harness does it?

this is how it goes wired in for the 3g alt



the white wire is a regulator and it goes from the center wire on the black D shaped connector, then the two black thick wires from the harness go to the power(i think) in the alt

[bonnie&clyde]

Where are you taking it for the tune?

GearHeads

[Blue88Coupe]

GearHeads

Cool. I dont know anything about wiring that 3g alternator. I just knew that wires has to be modded to get it in there.