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Tippy Tippy is online now
Chain fence eating turbo
 
Join Date: Dec 2008
Location: Austin, TX
Posts: 9,210
UPDATE again.......

- Cleaned all of the solder joints with alcohol, swabs, and cotton balls on the DME
- Inspected for cracked solder joints - found none by the naked eye - saw a bunch that were repaired before
- Disconnected CHT plug at intake and the car immediately died
- Did a compression test (cylinders warmed and WOT) and the lowest cylinder was 120 PSI and the highest was probably 130 PSI (mind you this a 7.5:1 CR motor)
- Played with 8-position selector switch on DME and no better results from position 0, position 1 (1.5% enrichment), to position 2 (2.8% enrichment) <- data given by "ischmitz"
- Tuner who burned my chip said he can't really tell if the chip is bad, that all he could do is look at the maps and what he has stored on his computer

When doing the compression test and reading the plugs, all of the center electrodes and porcelains were nicely clean with just a hint on whitish/ashy color on the edges while a slight blackness around the threaded area of the plug.

The plugs look almost brand new indicating to me that this is still a lean condition - even though my fuel pressure is reading higher than what the tuner states he tries to set them at.

The statement above baffles me because I am running higher fuel pressure than stock (FPR is not adjustable), while having way bigger injectors, along with way lower compression over stock.

Not a hint of black smoke comes out of the tailpipe that would indicate a rich condition.

I am stumped.

I need a stock chip if anyone has one.........
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Cory - turbo'd '87 C3.2 Guards/Blk, 3.4, 7.5:1 CR, 993SS cams, Borg-Warner S366 turbo @ 1.2-1.5 bar, Treadstone full bay IC, 70mm TB, TiAL F46 WG, HKS 1 1/2" BOV, twin 044 pumps, MicroSquirt AMP'd w/GM smart coilpack, Bilstein coilovers, Tramont replica Speedlines (285's rr, 225's frt), Big Reds frt, 993 rr., tower brace, MOMO wheel

Last edited by Tippy; 08-22-2011 at 08:32 PM..
Old 08-22-2011, 08:27 PM
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