Black Smoke On Start Up
- Thread starter Bonacheli
- Start date
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My guess is it’s running pig rich.
As to why,well I don’t know- you haven’t mentioned any info at all about your car.
What year is it?
Check engine light on?
What are the codes?
What are the mods?
How’s it run?
Those will be good starting points to help figure out your issue
As to why,well I don’t know- you haven’t mentioned any info at all about your car.
What year is it?
Check engine light on?
What are the codes?
What are the mods?
How’s it run?
Those will be good starting points to help figure out your issue
Again the info above is needed. Do you know how to check for codes in an obd1 ecu? If not I can find the sticky on how. We could guess randomly but that might get expensive.
I had an Olds Calais years ago that did this to me a lot. Dealership diagnosed it as one or more fuel injectors slowly leaking gas into the intake while the car sat overnight, causing a very rich condition at startup. It would sometimes take several tries to get it to fire, and it would sometimes backfire through the intake on failed starts.
In that case,Welcome to Stangnet
When you get a chance- give us the info on your car. Like mentioned above,we could make guesses-but it would get expensive
Christian Cornwell
Active Member
I would guess probably a bad injector. Pulled any plugs yet? How do they look? If you don't have a tune on the car and it just happened recently I'd go through start the car and let it run for 5-10 seconds, shut it off and immeditly start pulling plugs laying them out on the floor the way they came out. If one of them has more carbon on it than the others that's most likely your bad injector. If you're into the route of pi*sing money away trying to fix the problem. Injectors on eBay are only like $50 for a set of stock 19lbsers
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