OK, as you have figured out I own an 87 TPI with the Cold start Injector. I have installed and am running a modified 89 ARAP BIN and was wondering if it was necessary to unplug the cold start inj. I have not as of yet and it has not given me any fits...

John


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87 Formula Yellow/Black
Engine & Transmission
.040 over 5.0 converted to TPI, 9.5:1 Compression, SLP Cam Dur 206/212, Lift 480/487, Cent Line 112, SLP headers, SLP cat-back exhaust, K&N Airfilter, Modified Stock cold air intake, Ported & polished Stock TPI intake, Holley Adjustable Fuel Press regulator, AC Rapidfire Spark Plugs.
Gil Younger (no yo-yo) Shift Kit, Aluminum Driveshaft, 3.73 Posi gear
Suspension & Brakes:
Baer 12" brakes 4 wheels, KYB AGX Adjustable Shocks & struts, Hotchkis strut tower brace, South side machine frame connectors, Custom reinforced control arms and pan hard bar.
Interior:
Custom Leather interior, CUSTOM Yellow Gauge Faces, Kenwood Receiver, Pioneer Speakers, Kicker Substations, Kenwood 10 Disk Changer, Pioneer Amp.

87 Formula TPI (5 Speed) Yellow/Gray STOCK

1967 Buick Riviera 430hp Turns high 14's (Not bad for 4300 lbs)

83 Camaro (Parts)
83 T/A (parts)

http://www.3rdgenformula.com

 

You should unplug the cold start injector, even better would be to pull the 3 amp fuse from your fuse panel. the best would be to pull the fuse and buy a 9th injector block kit. Your car will only use the 9th injector if it is below a certain temp. it may not have gotten that cold to effect the starting yet, but it may so i would pull the fuse.

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87 Iroc-Z 305 TPI
Dynomax exhaust
modified MAF & airbox
3-10" JL subs
Eclipse components

 

When I first started using my modified ARAP bin on my 305, I just pulled the 3-amp fuse. I actually used the values in the Open Loop AFR vs. Coolant Temp table from my stock 305 bin instead of the ARAP, but it still worked OK, mainly because my car is parked in a garage that never gets below 40 deg. F in the winter.

A few months ago, I installed the block-off kit to get rid of the injector and little fuel line that were cluttering up the engine. Now with the 355 I just installed, I am using the Open Loop table from the ARAP bin, but modified to suit my engine better. Haven't had a cold-start or cold-running problem since day 1.

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Greg Westphal
'87 IROC 355TPI/A4

 

Ok, Why should I disconnect it? Will it flood the engine. BEFORE when I would disconnect the CSI it would hardly start, if at all, even when it was warm. SINCE I no longer NEED it, aaww heck, I guess I will stop asking and do it.

I still want to know

 

It won't flood the engine, but you'll be running to rich when the engine's cold if you have that connected and are using the Open Loop tables from the ARAP bin. Sounds like you need more fuel at lower temps in that Open Loop table...

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Greg Westphal
'87 IROC 355TPI/A4