1991 won't start when it's been in the heat for a while

pjordan93

New Member
Hi everyone,

My Integra has a recurring problem. When it sits in the sun for a while and gets hot, it will either start and immediately die or not start at all. If I open the windows, and pop the hood and let the car cool off for 5 minutes it usually starts up with no problem.

Summer is almost over and it shouldn't be a problem as the weather cools down, but I'd like to know what exactly is the problem. Anyone have any ideas?

Thanks :)
 

chronsolo

MAD MAN
had the same problem with my nissan, the coolant temp sensor was messed up and telling the car it was like -50 degrees and it would just dump fuel into the combustion chamber
 

BrokenTalon27

W.F.O
My first thought is check the main fuel relay. They are a common problem now being that they are near the end of their lifespan. It's located under the dash behind the steering wheel.
 


lowazzteg

3rd Super Mario Bro
BrokenTalon27 said:
My first thought is check the main fuel relay. They are a common problem now being that they are near the end of their lifespan. It's located under the dash behind the steering wheel.
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x2. Take out your main relay and put it in the fridge for about 30 min. Then put it back in and try to start. That's how I figured out why mine wouldn't start. It's maybe a $45 replacement.
 

Galatzky091

Galatzky091
That used to happen with my car, and the s3 light would blink. This always happend until i replaced my relay.
 


integration718

New Member
why do you guy s always resort to a main relay it could be that the fuel injector seal are spraying fuel in the combustion chamber creating a
 

integration718

New Member
fuel flood, kinda like a carb does,but in this case it sounds like the fuel presure in the line is bypassing the seal,just check your fuel injector seals.I had my 1992 GS-R since 1998 I never had an issue with main fuel relay its just a stupid myth.
 

lowazzteg

3rd Super Mario Bro
integration718 said:
why do you guy s always resort to a main relay it could be that the fuel injector seal are spraying fuel in the combustion chamber creating a
Click to expand...
Because 100% of Hondas use a main relay once in their life. Just like MKII Supras go through at least 1 head gasket in their life because Toyota tq'd them down very poorly. It's what most people have problems with. When you are trying to diagnose a problem, you try the most common solution first.
 

Galatzky091

Galatzky091
lowazzteg said:
Because 100% of Hondas use a main relay once in their life. Just like MKII Supras go through at least 1 head gasket in their life because Toyota tq'd them down very poorly. It's what most people have problems with. When you are trying to diagnose a problem, you try the most common solution first.
Click to expand...
Well said my friend.
 

ecmfreestyle

New Member
mine just started doing that a few weeks ago..if it to hot inside the car it wont start..so i leave my windows cracked and sun roof open and no more problems out of it since
 

Nico3d

New Member
MAIN RELAY! Right under the board, left to the steering wheel. Cost between 50-70 bucks and it's a "do it yourself" thing.
 

Prozon

Kris
Three weeks old lol.
Plus there's a "Main relay fix" thread in the how to forum. Worth checking out imo.
 
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