d16y7 CX Idling/revving troubles
02-15-2009, 05:27 PM
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mmm babby
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d16y7 CX Idling/revving troubles
I have a 97 CX HB, got it from some mexicanos day before christmas. Long story short, I am having trouble with the idling. I replaced the spark plugs and cleaned the mass airflow sensor, and also cleaned the throttle body walls and plate. When I push down on the accelerator a little bit, it goes to 1500 and bounces fast there, and then the more I push down on it slowly, the longer the pauses between the bounces become. Eventually it revs up to 4000 and I can get it to rev as low as 3600 before it goes back down to 1500 and bounces. I'm not sure what the problem is. I just want to bring this car back to DD'ing status. Also, as an added annoyance to the problem, the engine is running really rich. Like it almost burns your eyes rich, but I tweaked the airflow enough to get it so you can faintly smell the fuel. I am wondering if my entire harness is bad.
Sorry for the rambling, any advice would be helpful as this is my first project car
!
Sorry for the rambling, any advice would be helpful as this is my first project car
!
02-15-2009, 05:36 PM
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mmm babby
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02-16-2009, 10:32 AM
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Re: d16y7 CX Idling/revving troubles
Running rich isn't an added annoyance, it's a very clear symptom of whatever is causing the other problem.
Ok, so here's my advice. If it has problems that bad, there is likely a sensor or something that has died. You may not have any CELs, but that may be because the previous owner disconnected the CEL lamp to fool you. Luckily, there is a nice OBD2 connector under the dash, and the codes can be read from there. Then you can start troubleshooting.
Ok, so here's my advice. If it has problems that bad, there is likely a sensor or something that has died. You may not have any CELs, but that may be because the previous owner disconnected the CEL lamp to fool you. Luckily, there is a nice OBD2 connector under the dash, and the codes can be read from there. Then you can start troubleshooting.
02-16-2009, 10:36 AM
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Re: d16y7 CX Idling/revving troubles
Oh, and check the firing order. Make sure the plug wires go to the correct cylinders. You'll laugh, but it is a fairly common problem if you don't know anything about the person who owned the car before you. I've heard of cars that were sold because they ran like crap and the owner didn't want to mess with it anymore, only to find out that the plug wires were bad or in the wrong order.
02-17-2009, 06:44 AM
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Re: d16y7 CX Idling/revving troubles
Oh, and check the firing order. Make sure the plug wires go to the correct cylinders. You'll laugh, but it is a fairly common problem if you don't know anything about the person who owned the car before you. I've heard of cars that were sold because they ran like crap and the owner didn't want to mess with it anymore, only to find out that the plug wires were bad or in the wrong order.