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On a cold start (first thing in the morning or after the car has been sitting for a while) the start up/idle is perfect. If the engine is warm or hot when started it will sometimes idle for a second then stall out. Does anyone have any ideas, everything else is good, vacuum/boost/etc..
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how many miles on the car?? How about the engine?? rebuilt?? How long was it since spark plug change?? How about the wires??
FYI and for others.. Please do your basic maintenance on your car then post your problems. Most of the issues I've seen in person were mainly maintenance related. ie, changing your sparks, wires, checking check valves, vac lines, fuel filter, etc etc.. |
Originally Posted by herblenny' post='848648' date='Dec 10 2006, 10:18 PM
how many miles on the car?? How about the engine?? rebuilt?? How long was it since spark plug change?? How about the wires?? FYI and for others.. Please do your basic maintenance on your car then post your problems. Most of the issues I've seen in person were mainly maintenance related. ie, changing your sparks, wires, checking check valves, vac lines, fuel filter, etc etc.. The engine was rebuilt by KD rotary about 25,000 mi ago. It has never given me any problems. I have kept up on regular maintenance also. I thought the issue maybe the spark plugs, which were replaced 10,000 mi ago, I'm not sure about the wires, I'm guessing they were put on with the new engine, but not sure. |
Originally Posted by base94montego' post='848756' date='Dec 11 2006, 03:37 PM
The engine was rebuilt by KD rotary about 25,000 mi ago. It has never given me any problems. I have kept up on regular maintenance also. I thought the issue maybe the spark plugs, which were replaced 10,000 mi ago, I'm not sure about the wires, I'm guessing they were put on with the new engine, but not sure. in my opinion, go ahead and change out the sparks first then the wires. I replace my plugs 3-5k miles. After that if you still experience the problem, change out the wires also. Wires are pretty cheap ($30-$50). |
Originally Posted by herblenny' post='848837' date='Dec 12 2006, 11:14 AM
in my opinion, go ahead and change out the sparks first then the wires. I replace my plugs 3-5k miles. After that if you still experience the problem, change out the wires also. Wires are pretty cheap ($30-$50). Thanks for your help, I have noticed you have replied to some of my posts before. I will take your advice and swap the plugs later this month. |
I have a reman in my car with about 20k on it now. The engine was replaced by the guy that had the car before me. I had to replace the wires about 6 months ago due to bad ignition breakup at higher rpms. So I wouldn't assume they put new wires in with the engine.
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Originally Posted by SPICcnmGT' post='848848' date='Dec 12 2006, 12:44 PM
I have a reman in my car with about 20k on it now. The engine was replaced by the guy that had the car before me. I had to replace the wires about 6 months ago due to bad ignition breakup at higher rpms. So I wouldn't assume they put new wires in with the engine. True, if changing the plugs doesn't work, I will do the wires too. The ones I have on now are Magnecore 10mm, I assume these are good, does anyone know anything about ULTRA wires from Racing Beat? |
Are you running any amps, high boost, or aftermarket ecu?
If not, I would go with stock wires (NGK). also, I've heard awhile back the Magnacore sometime have problem popping out.. but that was few years ago. |
Originally Posted by herblenny' post='848864' date='Dec 12 2006, 02:52 PM
Are you running any amps, high boost, or aftermarket ecu? If not, I would go with stock wires (NGK). also, I've heard awhile back the Magnacore sometime have problem popping out.. but that was few years ago. All I have is a downpipe, KN drop in filter. Why are the NGK's better if you are running stock boost, etc.. |
I replaced mine with the stock wires and I have a good many more mods than you, and I haven't had any problems.
I think some of the aftermarket wires don't fit exactly right, just like herblenny said. |
Originally Posted by SPICcnmGT' post='848926' date='Dec 13 2006, 09:22 AM
I replaced mine with the stock wires and I have a good many more mods than you, and I haven't had any problems. I think some of the aftermarket wires don't fit exactly right, just like herblenny said. I see, are there any good aftermareket wires that might add a few hp or any other gain or should I just go ahead with stock? |
The stock wires are cheap and good!
at least you will have an extra set on hand if it turns out to be something else. |
None are really going to give you a hp gain. They will just return what was lost from the bad wires.
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I agree with what SPIC said.. Unless you are maxing out the limit of stock wires or bottle necking with the stock wires, its pointless to think that you will be gaining HP by thicker wires. With your mods, I think its ok to go with NGK vs. something that doesn't fit right and might pop off at wrong times...
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Originally Posted by herblenny' post='848955' date='Dec 13 2006, 12:20 PM
I agree with what SPIC said.. Unless you are maxing out the limit of stock wires or bottle necking with the stock wires, its pointless to think that you will be gaining HP by thicker wires. With your mods, I think its ok to go with NGK vs. something that doesn't fit right and might pop off at wrong times... I do also notice that when it does stall out, it always starts right away on the next try. Is this another clue that it might be the plugs? |
SINCE the plugs are so cheap, I say go ahead and buy some and try it out. Its hard to pin point as I don't know the condition of your car nor your ignition system.
Like I said earlier, i change my plugs about 3k-5k.. I currently have 40-60 NGKs at home + another 40 or so used ones in a box (you could clean it and reuse it). I think of it as cheap insurance and I always know if I have any ignition issues, it can't be the plugs. GO change it out and see. Small things like plugs and wires could make a huge noticeable difference.. Are you afraid to change it for some reason?? |
Originally Posted by herblenny' post='849792' date='Dec 21 2006, 08:57 AM
SINCE the plugs are so cheap, I say go ahead and buy some and try it out. Its hard to pin point as I don't know the condition of your car nor your ignition system. Like I said earlier, i change my plugs about 3k-5k.. I currently have 40-60 NGKs at home + another 40 or so used ones in a box (you could clean it and reuse it). I think of it as cheap insurance and I always know if I have any ignition issues, it can't be the plugs. GO change it out and see. Small things like plugs and wires could make a huge noticeable difference.. Are you afraid to change it for some reason?? Oh no, just haven't gotten around to it yet. |
I spoke with a few other people about this issue and they think it could be the base idle level. I might need to adjust it to a little higher because on warm starts my ecu is not catching the low idle
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did you do the plugs yet?
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Originally Posted by base94montego' post='850732' date='Dec 29 2006, 09:33 AM
I spoke with a few other people about this issue and they think it could be the base idle level. I might need to adjust it to a little higher because on warm starts my ecu is not catching the low idle WHAT?? Far as what I know, if your idle is set too high, car will hunt. I don't think you'll have starting issues as you could give little throttle for higher rpm.. What I don't understand is why you are searching for other options when its so easy to change the wires... Wires are cheap and takes 15-30 mins to swap. If you haven't done this in years, I would go ahead and give that a try before you try something else. |
Originally Posted by herblenny' post='851360' date='Jan 3 2007, 10:18 AM
WHAT?? Far as what I know, if your idle is set too high, car will hunt. I don't think you'll have starting issues as you could give little throttle for higher rpm.. What I don't understand is why you are searching for other options when its so easy to change the wires... Wires are cheap and takes 15-30 mins to swap. If you haven't done this in years, I would go ahead and give that a try before you try something else. |
Originally Posted by base94montego' post='852770' date='Jan 11 2007, 02:12 PM
Changed the plugs, problem fixed, thanks! |
Change the plug wires. I once bought a sencond gen for $100 in decent shape because the guy said the motor was shot. Boy was he suprised when I drove it off after changing plugs and wires in front of his house. The car still runs to this day. I change plug wires once a year minimum. Ignition is very important on the rotary.
Or you can pay someone else to do it. |
Originally Posted by rotaryinspired' post='855691' date='Jan 29 2007, 09:55 PM
Change the plug wires. I once bought a sencond gen for $100 in decent shape because the guy said the motor was shot. Boy was he suprised when I drove it off after changing plugs and wires in front of his house. The car still runs to this day. I change plug wires once a year minimum. Ignition is very important on the rotary. Or you can pay someone else to do it. |
I'm just curious as to why you would go as far as to drive to PFS and when you could spend 30mins to an hour to change the plug wires and plugs... then see if the problem persists...
Obviously the plugs were an issue, but could be because your wires are bad and not giving full spark... which might lead to carb build up or some other things are happening.. Change the plug wires!! They are pretty cheap and I'm guessing equal to an hour of PFS inspection fee. Otherwise, I'm mind blown as you get on here asking for suggestion but refuse to take simple advice?? |
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