Running like crap

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#11

01-06-2006, 01:56 PM

drkenan

2nd Gear

Thread Starter

Join Date: Dec 2004

Location: Asheville, NC

Posts: 614

RE: Running like crap

Thanks for your help. The '98 has coil packs on each individual cylinder. I'll get a chance to get to a steep hill tomorrow morning and try that out. Now that you mention it, I almost doubt that it's an actual misfire issue but more of a boost issue. I installed the 710n exactly like the 710 came off and I rechecked it about 2 days ago and everything looked fine.

I should have my boost guage installed tomorrow morning. Could someone remind me what normal GIAC chip boost is? I've heard conflicting reports from 10-22psi. Thanks!

#12

01-06-2006, 02:05 PM

clconversion

Senior Member

Join Date: May 2004

Location:

Posts: 3,843

RE: Running like crap

yes all 1.8T have coilpacks on each individual cylinder and how is going up a steep hill going to figure this out ?

#13

01-06-2006, 02:07 PM

onepoint8tee

Site Moderator

Join Date: Sep 2005

Posts: 13,664

RE: Running like crap

Quote:

ORIGINAL: drkenan

Thanks for your help. The '98 has coil packs on each individual cylinder. I'll get a chance to get to a steep hill tomorrow morning and try that out. Now that you mention it, I almost doubt that it's an actual misfire issue but more of a boost issue. I installed the 710n exactly like the 710 came off and I rechecked it about 2 days ago and everything looked fine.

I should have my boost guage installed tomorrow morning. Could someone remind me what normal GIAC chip boost is? I've heard conflicting reports from 10-22psi. Thanks!

I boost around 16 or 17 psi.. Vaccum should be around 20. I have seen it go up to 20 psi a few times just for a sec. I think thats called spiking. goes up to about 5psi when driving conservitively and 10+ when driving aggressive... i think.. Not totaly used to my boost gauge yet. But thats with GIAC

#14

01-06-2006, 02:10 PM

drkenan

2nd Gear

Thread Starter

Join Date: Dec 2004

Location: Asheville, NC

Posts: 614

RE: Running like crap

Quote:

ORIGINAL: clconversion

yes all 1.8T have coilpacks on each individual cylinder and how is going up a steep hill going to figure this out ?

Read what dafrazi wrote about 5 posts up.

#15

01-06-2006, 03:04 PM

dafrazi

2nd Gear

Join Date: Apr 2004

Location: Norristown, PA

Posts: 787

RE: Running like crap

For the K03 chip, peak boost is 16-17 psi. May show up as 15 psi on your meter.

By letting the car struggle up a steep hill, you will simulate a high load condition on the engine. This will make a misfire more obvious. It's an old trick my grandfather taught me about 17 years ago.