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Cold Start ?

 
Old 11-29-2010, 06:49 PM
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Default Cold Start ?

Now that it's getting colder I'm having a really hard time getting my car started. I've been trying to get it started for the past two days and haven't gotten anywhere except for a dead battery. I know i have to adjust my crank timing and fuel table but I'm not 100% sure on what I should change it to. Can anyone help? I've included my map.
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cz.ecu (8.0 KB, 113 views)
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Old 12-01-2010, 01:05 AM
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Whats your engine size and injector size?

Looking at your cranking table, either you have huge injectors, or you're not even close to having the right amount of fuel.
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Old 12-01-2010, 06:19 AM
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I have a 1.8 with 600 cc injectors.
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Old 12-01-2010, 06:26 AM
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Oh in that case, the values seem fine, i run 70ms and you have 60+ which is close enough.
Does the car fire and then dies shortly after?

Try crank timing at 9 degrees.
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Old 12-01-2010, 06:28 AM
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You have a lot of post crank enrichment.
You shouldnt really need more than 20-30 percent.
I only have 6% and 3%.
My car is a Corolla, but i find the values pretty close.
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Old 12-01-2010, 06:40 AM
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The car deoesnt turn over. It just keeps on cranking. I almost had it start last night but no go.
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Old 12-01-2010, 10:06 PM
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Here are my settings on 600cc injectors. The cranking isn't perfect. It takes a few cranks but it starts every time. http://www.flickr.com/photos/[email protected]/5224911175/

Your long post crank seems too high and your cranking fuel is almost half what mine is in the cold. I think my cranking fuel is considered way too high for 600cc injectors though but it works for me.
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Old 12-03-2010, 05:11 AM
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Your cranking settings are similar to mine, but i have 440cc injectors, so yea, your using about 1.5x more fuel than you need.
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Old 12-03-2010, 09:28 AM
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Generally it seems at low temperatures too much fuel is ok, but too little is definitely not, then in the intermediate temperatures (40C-70C) The engine is EXTREMELY sensitive to too much or too little. Also, you can use flood clear on the rev limit tab if you over fuel the engine. Basically when you mash the gas it cuts the injectors out, or reduces them greatly.
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Old 12-03-2010, 05:11 PM
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I'm definitely doing something wrong. :( I changed out my spark plugs and that helped me get it started since I flooded out the ones i put in less than 2 weeks ago... When the car was running at idle my AFR was 9.5 to 1. I haven't made any changes to my fuel table so i'm pretty much lost at this point.
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Old 12-03-2010, 08:11 PM
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Originally Posted by TravisR View Post
Also, you can use flood clear on the rev limit tab if you over fuel the engine. Basically when you mash the gas it cuts the injectors out, or reduces them greatly.
Now isn't this during cranking only? I never understood why that feature was in there. If someone is mashing the throttle during cranking, aren't they trying to get more fuel to start the car?
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Old 12-13-2010, 10:47 PM
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Originally Posted by PhantomRoadster View Post
Now isn't this during cranking only? I never understood why that feature was in there. If someone is mashing the throttle during cranking, aren't they trying to get more fuel to start the car?
Not always, like if your tuning the vehicle you might accidnentally add too much cranking fuel, this quickly clears out whats in there, and lets you try again. Its definetely a tuning feature, and not really a DD feature.
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Old 12-14-2010, 04:04 PM
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Try 0 degrees in the Ign Timing when Cranking field.
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