Running Pig rich
#1
Passenger
Posts: n/a
Running Pig rich
Car: 87 TII bone stock. 120k on engine.
So my problem is im getting 9mpg on the car. works out roughly to 200km a tank. anyone has any idea what would cause this? cuz this is extremely rich especially parked you can smell gas from the the rear so bad its almost unbearable.
So my problem is im getting 9mpg on the car. works out roughly to 200km a tank. anyone has any idea what would cause this? cuz this is extremely rich especially parked you can smell gas from the the rear so bad its almost unbearable.
#2
Keep Right Except to Pass
Dang! All these horrible mileage stories are popping up.
What kind of driving? How does it run? Error codes? Bad thermosensor? Ignition system in good shape - plugs/wires, timing? The o2 sensor can have some effect but not that much. Low compression will raise fuel consumption. Clogged air filter? Fuel leak? Fuel pressure reg. bad? TPS adj'd?
Just a couple of ideas.
For reference: mine's mildly modded and I still get around 20MPG.
What kind of driving? How does it run? Error codes? Bad thermosensor? Ignition system in good shape - plugs/wires, timing? The o2 sensor can have some effect but not that much. Low compression will raise fuel consumption. Clogged air filter? Fuel leak? Fuel pressure reg. bad? TPS adj'd?
Just a couple of ideas.
For reference: mine's mildly modded and I still get around 20MPG.
#4
Yar-Har-Har
Join Date: Sep 2002
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i was getting about 150 miles to a full tank when i first got my 88 TII....
ITS A FUEL LEAK....
park it now or else your car will burn...
I had 3 seperate leaks..
1-Pulsation dampener
2-nasty clogged injectors
3-old fuel lines
i thought it was just running rich, but the loss in milage led me and my friend to think otherwise....
just jump the fuel system while the car is off, and you WILL smell fuel and a lot of it.....
the next phase is finding the leaks
trust me though.....spare your 7 and dont drive it while it has fuel leaks.....
just a thought from someone who was in the same ship about 3 months ago...im sure other will agree
=-dustin
ITS A FUEL LEAK....
park it now or else your car will burn...
I had 3 seperate leaks..
1-Pulsation dampener
2-nasty clogged injectors
3-old fuel lines
i thought it was just running rich, but the loss in milage led me and my friend to think otherwise....
just jump the fuel system while the car is off, and you WILL smell fuel and a lot of it.....
the next phase is finding the leaks
trust me though.....spare your 7 and dont drive it while it has fuel leaks.....
just a thought from someone who was in the same ship about 3 months ago...im sure other will agree
=-dustin
#5
Engine, Not Motor
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Does the exhaust smell of fuel? Black smoke? Does the exhaust glow red after driving?
If the answer is "yes", then you are running rich and should do the following:
1. Replace: plugs, plug wires, air filter, fuel filter, O2 sensor
2. Test: water thermo sensor (on water pump), oil temp sensor
3. Clean: injectors (have it professionally done)
If the answer to the above question is "no", then you may have a leak and you should CAREFULLY inspet the entire fuel system with the fuel pump running. To run the pump without running the car, jumper the yellow test connector at the passenger shock tower and set the ignition key to "ON" but don't start the car. Now visually inspect the system. Leaks should be fairly obvious. Do this with the car COLD.
If the answer is "yes", then you are running rich and should do the following:
1. Replace: plugs, plug wires, air filter, fuel filter, O2 sensor
2. Test: water thermo sensor (on water pump), oil temp sensor
3. Clean: injectors (have it professionally done)
If the answer to the above question is "no", then you may have a leak and you should CAREFULLY inspet the entire fuel system with the fuel pump running. To run the pump without running the car, jumper the yellow test connector at the passenger shock tower and set the ignition key to "ON" but don't start the car. Now visually inspect the system. Leaks should be fairly obvious. Do this with the car COLD.
#6
Passenger
Posts: n/a
wow u guys are quick. thanks i'll try getting all those things checked. hopefully it'll help out and one more thing. the car is running fine except for exhaust leaks the digital clock screwing up and the fumes outta the exhaust smelling real bad(rich).
#7
Yar-Har-Har
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good luck with the clock problem...
mine only comes on when it wants to....usually when its really cold for some odd reason...
the fix for that is to take out the idiot light cluster and have someone who is handy with soder to re-soder all the connections....there is also one to buy one ebay right now that has apparently already had this done...id say just fix your own, instead of buying a new one...im sure it wont cost much to get a professional to do it.....which brings up a question of it own.....does anyone know of any shops like circuit city or radio shack that will soder stuff for someone....i need to get mine fixed and dont feel confident enough to solder it all my self....
=-dustin
mine only comes on when it wants to....usually when its really cold for some odd reason...
the fix for that is to take out the idiot light cluster and have someone who is handy with soder to re-soder all the connections....there is also one to buy one ebay right now that has apparently already had this done...id say just fix your own, instead of buying a new one...im sure it wont cost much to get a professional to do it.....which brings up a question of it own.....does anyone know of any shops like circuit city or radio shack that will soder stuff for someone....i need to get mine fixed and dont feel confident enough to solder it all my self....
=-dustin
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#8
Passenger
Posts: n/a
sorry im a bit confused i want to clear this up before i get the shop tmr so i can just come in and out as quickly as possible which one of these two is the water thermo sensor?? 1? or 2? only two i could possibly find taht could be one but im not sure which. can anyone help me out?
#9
Eat, sleep, work, mod.
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if u cant smell raw fuel while or after driving then I seriously doubt you have a fuel leak, it should be fairly obvious...bad leaky injectors will cause hard starting and flooding (also obvious). get your car tuned up (plugs, wires, fuel filter, air filter, O2 sensor). dont drive hard on the tank after and see where u land. everyone agree??
#11
Edmond Dantes
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Originally posted by tammy
sorry im a bit confused i want to clear this up before i get the shop tmr so i can just come in and out as quickly as possible which one of these two is the water thermo sensor?? 1? or 2? only two i could possibly find taht could be one but im not sure which. can anyone help me out?
sorry im a bit confused i want to clear this up before i get the shop tmr so i can just come in and out as quickly as possible which one of these two is the water thermo sensor?? 1? or 2? only two i could possibly find taht could be one but im not sure which. can anyone help me out?
#12
Lava Surfer
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Originally posted by Aaron Cake
Does the exhaust smell of fuel? Black smoke? Does the exhaust glow red after driving?
If the answer is "yes", then you are running rich and should do the following:
1. Replace: plugs, plug wires, air filter, fuel filter, O2 sensor
2. Test: water thermo sensor (on water pump), oil temp sensor
3. Clean: injectors (have it professionally done)
If the answer to the above question is "no", then you may have a leak and you should CAREFULLY inspet the entire fuel system with the fuel pump running. To run the pump without running the car, jumper the yellow test connector at the passenger shock tower and set the ignition key to "ON" but don't start the car. Now visually inspect the system. Leaks should be fairly obvious. Do this with the car COLD.
Does the exhaust smell of fuel? Black smoke? Does the exhaust glow red after driving?
If the answer is "yes", then you are running rich and should do the following:
1. Replace: plugs, plug wires, air filter, fuel filter, O2 sensor
2. Test: water thermo sensor (on water pump), oil temp sensor
3. Clean: injectors (have it professionally done)
If the answer to the above question is "no", then you may have a leak and you should CAREFULLY inspet the entire fuel system with the fuel pump running. To run the pump without running the car, jumper the yellow test connector at the passenger shock tower and set the ignition key to "ON" but don't start the car. Now visually inspect the system. Leaks should be fairly obvious. Do this with the car COLD.
#13
Haven't we ALL heard this
Originally posted by bingoboy
Question: clogged fuel filter can make the car run rich? Also...jumping the fuel pump without the car running, that's not bad for the pump is it? Will it just pressurize the fuel system so you can find the leak? And by jump do you mean just feed it 12v from the battery?
Question: clogged fuel filter can make the car run rich? Also...jumping the fuel pump without the car running, that's not bad for the pump is it? Will it just pressurize the fuel system so you can find the leak? And by jump do you mean just feed it 12v from the battery?
No, running the fuel pump with the engine off is fine. To run the pump with the engine off do this.
1. Place ignition to on posistion.
2. Locate yellow, two pin connector. This is near your boost sensor which is bolted to your right front shock tower. The yellow connector will be behind the boost sensor and follow the outer perimeter of the shock tower. You will find it. It is not connected to anything and on short wires.
3. Take a piece of electrical wire and bend it in a U shape (about 2-3" of wire)
4. Then, "jump" the yellow connector by placing each lead in the respective pin.
5. You should hear the fuel lines pressurize.
6. Hunt for your leak.
7. Good luck
James
#14
Senior Member
Originally posted by tammy
the car is running fine except for exhaust leaks the digital clock screwing up
the car is running fine except for exhaust leaks the digital clock screwing up
we have digital clocks??????
-Shawn (it was a joke, its just that i never saw a rx-7 with one that worked)
btw, everyone basekly said what to check, i had one on the hose that goes from the fuel filter to the engine, cheap hose, cheap fix
#15
Originally posted by Wankel7
I do not see how a clogged fuel filter could make it run rich. However, anything is possible and it could not hurt to change it.
No, running the fuel pump with the engine off is fine. To run the pump with the engine off do this.
1. Place ignition to on posistion.
2. Locate yellow, two pin connector. This is near your boost sensor which is bolted to your right front shock tower. The yellow connector will be behind the boost sensor and follow the outer perimeter of the shock tower. You will find it. It is not connected to anything and on short wires.
3. Take a piece of electrical wire and bend it in a U shape (about 2-3" of wire)
4. Then, "jump" the yellow connector by placing each lead in the respective pin.
5. You should hear the fuel lines pressurize.
6. Hunt for your leak.
7. Good luck
James
I do not see how a clogged fuel filter could make it run rich. However, anything is possible and it could not hurt to change it.
No, running the fuel pump with the engine off is fine. To run the pump with the engine off do this.
1. Place ignition to on posistion.
2. Locate yellow, two pin connector. This is near your boost sensor which is bolted to your right front shock tower. The yellow connector will be behind the boost sensor and follow the outer perimeter of the shock tower. You will find it. It is not connected to anything and on short wires.
3. Take a piece of electrical wire and bend it in a U shape (about 2-3" of wire)
4. Then, "jump" the yellow connector by placing each lead in the respective pin.
5. You should hear the fuel lines pressurize.
6. Hunt for your leak.
7. Good luck
James
thanks
#17
Passenger
Posts: n/a
Just tested my water thermo sensor it was good
i talked with a local rotary expert and he says theres a sensor near the oil filter. what sensor may that be i can pick at it just curious at what sensor that may be. also if im running this rich would that mean my omp is injecting way too much oil into my engine?
i talked with a local rotary expert and he says theres a sensor near the oil filter. what sensor may that be i can pick at it just curious at what sensor that may be. also if im running this rich would that mean my omp is injecting way too much oil into my engine?
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