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Go Speedracer, go!
Join Date: Aug 2002
Location: Indianapolis
Posts: 1,951
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Cold start problems
Where should I start looking to find cold start issues? The car starts fine, but idles very low, and when given gas, will bog down. Once warmed up after about 2 minutes of driving it is fine.
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1981 SC ROW Coupe |
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06-16-2003, 01:54 PM
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Registered
Join Date: Apr 2003
Location: Las Cruces, NM
Posts: 2,459
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Warm up regulator and the temp sensors at the front.
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2007 Mazda 3 hatch 1972 Porsche 914 roller with plenty of holes to fix 
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06-16-2003, 02:03 PM
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Go Speedracer, go!
Join Date: Aug 2002
Location: Indianapolis
Posts: 1,951
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Thanks, I figured it would be a simple answer. Now, how do I find these and are they repairable, or do they have to be replaced?
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1981 SC ROW Coupe |
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06-16-2003, 02:41 PM
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Registered
Join Date: Oct 2000
Location: Nor-Cal
Posts: 4,403
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Before you go throwing parts at it, you need to establish a base line, by making sure your CO and timing are set properly, and a fuel pressure test. If you plan to work on your car yourself, invest in a proper CIS fuel test rig, and a CIS troubleshooting guide.
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06-16-2003, 06:08 PM
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Registered
Join Date: May 2003
Location: Manhattan Beach, CA
Posts: 2,350
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Good posts! Don't start "throwing darts" to find the problem.
As mentioned, you need a fuel pressure gauge to measure the cold and hot fuel dist. control pressure from the WUR. Also, you need to determine if you have 12V going to the WUR and aux. air valve. The 12v comes basically from the same circuit as the fuel pump voltage and affects how the engine runs as it warms up. Check out this website (Systemsc.com). It may provide some helpful info. Loren '88 3.2 |
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06-16-2003, 09:07 PM
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