Optical vs. Hall Effect - Page 2

turboglenn · 03-20-2008, 12:47 PM

UPdate: While taking squeek10686 for a ride today i was at 22psi and this started happening earlier, (about 6800) and when i backed off to 19psi i hit 7200 again.

Now this confuses me to weather or not it's valve or spark related...... Why couldn't it have just stayed the same???

??

I lost my job yesterday so parts money is obsolete for a while, i've got over 950 bucks in insurance due next month and that leaves me broke!

Well, with this new added info, does this change anyone's opinion?

turboglenn · 03-20-2008, 10:11 PM

Well, i got a DIS-2 on loan from squeek, i'll most likely install tomorrow and report back.

turboglenn · 03-21-2008, 10:54 PM

Well, i got the DIS-2 in tonight. I wired it 2 ways. once by bypassing teh ignitor/transistor and triggering the MSD via haltech directly. I was experiencing hard starting and also Quite a bit of more knock than usual. After wiring in the transistor to feed signal to the MSD things got quite a bit better. Although it didn't fix my revving issue (has to be valve springs now), it started easier and there was less knock on initial free rev and under high boost in third gear. So basically the unit did me no good, but i guess it's nice to have. I am not sure that i still wnat it, but what the hell, if i can afford it , i will buy it.

Jimmy Jr. · 03-24-2008, 09:51 PM

What plugs are you running? Friend had this exact problem and swapped every ignition related component on the car. Come to find out he was running bpr8's. Threw in some 7's and the problem vanished.

turboglenn · 03-24-2008, 10:59 PM

I'm running BR7ES plugs, gapped at .025

demografik · 03-25-2008, 04:52 AM

what wires?

turboglenn · 03-25-2008, 09:25 AM

Magnecore 8.5mm wires.

demografik · 03-25-2008, 07:21 PM

have you inspected for damage and tested for bridging?

turboglenn · 03-25-2008, 07:24 PM

Quote:

Originally Posted by demografik

have you inspected for damage and tested for bridging?

yea, i've done everything and replaced EVERY ignition part. I'm guessing it's valve float as i can feel the power drop off about 700RPM before it starts breaking up and shutting down. I even added an MSD DIS-2 and still no better.

HighPSI TSi Guy · 03-25-2008, 08:05 PM

Are you sure it's not fuel related? something stupid that accidently got changed in the haltech settings maybe? I've seen instances on AEM cars a lot where someone messes with it and accidently hits a key or messes with something they don't understand and it's a bitch to track down and causes stuff like this.

turboglenn · 03-25-2008, 08:22 PM

Quote:

Originally Posted by HighPSI TSi Guy

Are you sure it's not fuel related? something stupid that accidently got changed in the haltech settings maybe? I've seen instances on AEM cars a lot where someone messes with it and accidently hits a key or messes with something they don't understand and it's a bitch to track down and causes stuff like this.

You raise a good point but i've checked EVERYTHING as far as settings, fuel and spark maps, extra inputs and outputs and if they are grounded or not.

The one thing that shouldn't cause it but i haven't checked yet is the fact that i went from multi point injection with an "ignition divide by" setting of 2 (meaning the injectors fire every 2 spark events) and now i'm running in batch fire where the ignition divide by is set to fire the injectors once every ignition event or a setting of 1.

I need to change it back and test it, the same map will even be fine on fuel, i just keep forgetting to try that once because i don't always have a laptop with me when i think about it. I just switched to batch fire to try and gain some mileage back.

90laserRSfwd · 03-25-2008, 11:12 PM

Have you done a compression, leak down, and boost test's lately?

turboglenn · 03-26-2008, 12:01 AM

Yes, if yoiu look at the first posts in this thread and my thread "can't rev past 7200" you will see that i've done all the normal tests and then some. Went extreme on shielding and grounding and power wires, added an MSD box and changed plugs twice. It has to be the valve springs giving up the ghost.