Vapor lock or not?
Thread Starter
Cruising
Joined: Jul 2003
Posts: 11
Likes: 0
From: Las Vegas NV
Vapor lock or not?
Ok some say that fuel injection cannot have vapor lock, but this is my situation.
I live in las vegas the current temp is 115F, I drive my car for about 20 minutes and the engine temp ends up at about 200 – 220F.
Then the throttle starts to sputter and when I turn it off the car has a hard time starting.
The fuel rails are very hot.
Things I have replaced too try to salve the problem:
New fuel pump
Accel 30 lb./hr. injectors
MAT Sensor Relocating Kit
New MAT Sensor
New Throttle Position Sensor
Two new O2 Sensors
New radiator fluid Temp Sensor
Throttle Performance Switch
New Opti Spark Distributor Cap Kit
Hypertech 160 Degree Thermostat
Throttle Body By-Pass (I just used a new hose)
Rebuilt ECM
Manual fan switch
The only thing I can think of know is the fuel regulator.
Any suggestions would be very appreciated.
Sincerely EricWTT
http://ericwtturner.tripod.com/vette.htm
I live in las vegas the current temp is 115F, I drive my car for about 20 minutes and the engine temp ends up at about 200 – 220F.
Then the throttle starts to sputter and when I turn it off the car has a hard time starting.
The fuel rails are very hot.
Things I have replaced too try to salve the problem:
New fuel pump
Accel 30 lb./hr. injectors
MAT Sensor Relocating Kit
New MAT Sensor
New Throttle Position Sensor
Two new O2 Sensors
New radiator fluid Temp Sensor
Throttle Performance Switch
New Opti Spark Distributor Cap Kit
Hypertech 160 Degree Thermostat
Throttle Body By-Pass (I just used a new hose)
Rebuilt ECM
Manual fan switch
The only thing I can think of know is the fuel regulator.
Any suggestions would be very appreciated.
Sincerely EricWTT
http://ericwtturner.tripod.com/vette.htm
Le Mans Master
Joined: Jun 2002
Posts: 6,097
Likes: 0
From: High Plains Drifter Fayetteville, AR
Re: Vapor lock or not? (EricWTT)
Why do you have 30lb injectors? I looked at your page and didn't see anything about increasing the displacement of you engine, so why the bigger injectors?
Can't help with the problems once your up to temp, but the warm/hot hard starting might be due to the bigger injectors. Good luck, hope you find better help :cheers:
Can't help with the problems once your up to temp, but the warm/hot hard starting might be due to the bigger injectors. Good luck, hope you find better help :cheers:
Melting Slicks
Joined: May 2001
Posts: 2,143
Likes: 7
From: San Diego CA
Re: Vapor lock or not? (EricWTT)
It is possible that the Cat. Conv. are plugged?
Look around for vacuum leaks.
Just a guess here, but try removing the throttle performance switch. That along with the bigger injectors maybe flooding or causing a rich condition.
Look around for vacuum leaks.
Just a guess here, but try removing the throttle performance switch. That along with the bigger injectors maybe flooding or causing a rich condition.
Thread Starter
Cruising
Joined: Jul 2003
Posts: 11
Likes: 0
From: Las Vegas NV
Re: Vapor lock or not? (John Row)
I'll try the first two tomorrow but the throttle performance switch didn't do anything and I had the problem before I got the bigger injectors.
If I leave the AC off it runs between 185-195
which is good except it about 115F right know :mad
So I dieing from the heat.
If I leave the AC off it runs between 185-195
which is good except it about 115F right know :mad
So I dieing from the heat.
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