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Discussion Starter · #1 ·
My Gallardo starts up fine when cold but when hot it spits and sputters the first 2-3 tries and then fires off. This is not to be confused with the slow starter issue which I do not have. This feels more like vapor lock in the fuel lines. Anyone experience this?
 

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2011 LP560-4 Spyder / Blu Fontus
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So no codes, no CEL? What year.... no excessively long cranking.
You suspect too much fuel or not enough on a hot start....... Cold start requires rich mixture compared to hot and if the computer thinks it's a cold start again then a rich mixture could cause that on a hot start. If the coolant temperature sensor goes bad it can send a false signal to the computer and throw off the fuel and timing calculations. ... This will cause the computer to think the engine is cold, even when it is not, and as a result will use more fuel than necessary.
Think it's supposed to throw a code for that.....(usually). or, a completely different issue could be fuel pressure. possible leakdown when hot may not set any codes
 
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Discussion Starter · #3 ·
Feels more like fuel pressure leak down or vapor lock. I am going to see if there are any pending codes today however with my scan tool. It spits and sputters, starts up for a second and stalls. After about the 3rd try it fires up fine. I even cycle the key a couple times hoping to get fresh fuel to the rails but no change. This only happens when hot. Cold start she fires up first attempt. Its a weird one.
 

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Check your charcoal canister, it's more than likely saturated. Common issue on pre-LP.
 

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2011 LP560-4 Spyder / Blu Fontus
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Check your charcoal canister, it's more than likely saturated. Common issue on pre-LP.
I had to replace the CC on a Rover once and the obvious symptom was it kept shutting the pump off when trying to put gas into it. When they're getting blocked it won't vent the air getting displaced in the tank as your filling it..........
 

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Mine had this exact issue, took fuel in just fine. Replaced the charcoal canister and gone. The canister is easy to pull and you'll feel the weight if it's saturated.
 
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