running rich and rough idle
#1
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running rich and rough idle
Hello, im new here and have a 1993 twin turbo with idle surging problems and also running rich, car sat for 4yrs and i just got it running, i just replaced the fuel tank and fuel pump and also installed a haltech elite 2000 with a base map. it starts up fine but it runs super rich with black smoke coming from the exhaust and the idle sounds like i got a huge cam in it lol...any ideas where i should start looking at?
#2
needs more track time
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Running rich - Could be the injectors are leaking.
Idle can be related to that but could also be vacuum leaks from vacuum hoses.
Highly recommend reviewing the threads in the FAQ related to those problems: https://www.rx7club.com/3rd-generati...l-links-68640/
Idle can be related to that but could also be vacuum leaks from vacuum hoses.
Highly recommend reviewing the threads in the FAQ related to those problems: https://www.rx7club.com/3rd-generati...l-links-68640/
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Sgtblue (12-14-22)
#3
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Not familiar with the Haltech and it will likely be mentioned in the above mentioned FAQs, but if you can do a sensor check with the Haltech, and especially if you don’t find a vacuum leak, I’d look the IAT. Regardless before a deep dive to the injectors I’d try some quality fuel system cleaner and just drive it to see if things improve.
The Factory Service Manual also will have trouble-shooting guides.
http://wright-here.net/cars/rx7/93_manual.htm
The Factory Service Manual also will have trouble-shooting guides.
http://wright-here.net/cars/rx7/93_manual.htm
Last edited by Sgtblue; 12-14-22 at 10:49 AM.
#4
Rotorhead for life
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Hello, im new here and have a 1993 twin turbo with idle surging problems and also running rich, car sat for 4yrs and i just got it running, i just replaced the fuel tank and fuel pump and also installed a haltech elite 2000 with a base map. it starts up fine but it runs super rich with black smoke coming from the exhaust and the idle sounds like i got a huge cam in it lol...any ideas where i should start looking at?
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MetalSkinGaming (12-19-22)
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