1997 GSX - DD, RR, and 11's.

[SlowWhite]

I wish I could is isolate the issue so I could pin point what needs to be fixed.

Like last night car at spring pressure was pulling really strong so I loaded a log from when I had boost set to 25psi. Did a pull and the car boosted so hard (less then 800rpms pull) saw the gauge hit 36psi at initial spool up. Reviewed logs and link showed 40psi.

So manually went in and loaded different settings after two pulls had it at 22psi.
so why would settings that I ran for 5months now all of a sudden cause such high boost?

[Kracka]

Colder ambient air temps.

[SlowWhite]

Colder ambient air temps.

Its possible, but when combines with the fluke last week where I captured a log showing that while cruising with out changing throttle position or anything the controller would just kick on as if I was trying to do a pull, its hard to say for sure of the ebc isn't having an issue also.

Ive also noticed my wideband go nuts for no reason also where it will just stick full rich or somtimes randomly go full lean.

Temps here have been back in the 70's lately. Last night during a pull my wipers went up at around 130mph.
as if there wasn't enough power but logs show 13.7v on the battery at the time it happened.

Just wierd how one moment/pull everything was going great, then the very next pull all this random stuff started happening and has kept on ever since.

Is it possible something is going wrong with the ecu? I remember leaky caps or something was an issue going around when I had my last car. Would that cause something like this?

[SlowWhite]

I just came across a thread on tuners through a search about the ARC-2 with cop setup causing the same issues im having once either the arc goes bad or the cop goes bad.

Which im running arc 2 w/cop. One person experiencing the same issues finally found his harness had gone bad. Still researching ways to v eryify using an ohm meter.

[Halon]

ARC2's were great at first, but at some point they became hit/miss. I had an ARC2 on my car to go along with the stock ignition. I never really noticed much of a difference with it honestly, so I always wondered if I had a questionable unit.

[turbotalon1g]

Go to stock

[SlowWhite]

Well last night before leaving work decided to start the car and check all wires going from the cop to the arc2 and when I got to the plugs by the arc2 I wiggled them and when I did the car would drop rpms. I wiggled some more and the car would probably die if I kept wiggling. When id stop the rpms would go back to normal.

Haven't gotten a chance to pull all the plugs and check pins /wires. But hopefully my issue is someplace in the harness, cop, or arc2.

When I did my first two pulls car barely sputtered at 22psi...but rest of the attempted pulls sputtered anythinf over spring pressure again. (15psi)

[goodhart]

Do like brown said and ditch the cop and arc2, go back to stock stuff. You really dont need anything but stock for your power level. More headaches than its worth.

[asshanson]

Sorry for the OT post, but how far away from Carolina Motorsports Park are you? There is a small chance I may be going in spring.

Edit: Just read your first post, haha! If I end up going I'll let you know. The annual Noble/Rossion track day is probably being held there. Not sure on date yet.

[SlowWhite]

16miles.

I literally turn right out of my neighborhood , drive 16miles, turn right into the race track.

I live off the same road as it.