Help car wont start now!
#1
Senior Member
Thread Starter
Help car wont start now!
Hey guys I'm going to try to keep this short but it wont be so bare with me.
first off its a new motor I build myself. I have removed the following.
Double throttle
ACV and ACV tube
Idle speed control
Split air pipe
Thermowax
(Its' a JDM motor so no AWS or EGR)
Its also been ported to a street port.
I have a PFC and I have reset it and turned off the O2 sensor. Yesterday when I first installed the motor I followed the start up procedures and it would start but would not idle. I tried adjusting the idle with the idle screw and the outside secondary butterfly adjuster, but it still would not idle but I could still keep it running by giving it gas. I tried to adjust the TPS with the PFC commander and got it into limits. After a while I stuck a screwdriver into the secondary butterfly adjuster to prop open the valve. This worked and I pulled out the screwdriver and it finally idled for a while and I adjusted it to about 1000 rpm. I then let the car warm up and it was finally running pretty good. Then after it got up to temp the idle started fluctuating and I assume its the computer starting the Idle learn but I forgot about this. I then turned it off and tried to start it and it wouldn't idle again. Today the car will not even start it cranks and its getting fuel and it sounds like it's trying but will not run. I keep searching but I'm out of ideas. Can you please help me! I want my car back.
Sorry for the long post I wanted to make sure you have all the info.
first off its a new motor I build myself. I have removed the following.
Double throttle
ACV and ACV tube
Idle speed control
Split air pipe
Thermowax
(Its' a JDM motor so no AWS or EGR)
Its also been ported to a street port.
I have a PFC and I have reset it and turned off the O2 sensor. Yesterday when I first installed the motor I followed the start up procedures and it would start but would not idle. I tried adjusting the idle with the idle screw and the outside secondary butterfly adjuster, but it still would not idle but I could still keep it running by giving it gas. I tried to adjust the TPS with the PFC commander and got it into limits. After a while I stuck a screwdriver into the secondary butterfly adjuster to prop open the valve. This worked and I pulled out the screwdriver and it finally idled for a while and I adjusted it to about 1000 rpm. I then let the car warm up and it was finally running pretty good. Then after it got up to temp the idle started fluctuating and I assume its the computer starting the Idle learn but I forgot about this. I then turned it off and tried to start it and it wouldn't idle again. Today the car will not even start it cranks and its getting fuel and it sounds like it's trying but will not run. I keep searching but I'm out of ideas. Can you please help me! I want my car back.
Sorry for the long post I wanted to make sure you have all the info.
#4
Senior Member
Thread Starter
I do not have a datalogit and I have stock injectors and turbos right now. I removed a couple of plugs and they were dry and clean I still went through the deflood procedures. It does seam like the plugs aren't firing now and I smell a lot of fuel every time I try to start it.
#5
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reset the ecu, i think its settings > ect > initialize
check out this post for idle and pfc idle tuning, there is several posts in here by the op throughout the pages so try to really read thru it.
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/how-make-your-untuned-pfc-basemap-safer-idle-better-no-datalogit-needed-841706/
let your rx7 sit for a like half a day before starting it as well. and double check all your electrical connections in the engine bay.
check out this post for idle and pfc idle tuning, there is several posts in here by the op throughout the pages so try to really read thru it.
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/how-make-your-untuned-pfc-basemap-safer-idle-better-no-datalogit-needed-841706/
let your rx7 sit for a like half a day before starting it as well. and double check all your electrical connections in the engine bay.
#6
Senior Member
Thread Starter
reset the ecu, i think its settings > ect > initialize
check out this post for idle and pfc idle tuning, there is several posts in here by the op throughout the pages so try to really read thru it.
https://www.rx7club.com/showthread.php?t=841706
let your rx7 sit for a like half a day before starting it as well. and double check all your electrical connections in the engine bay.
check out this post for idle and pfc idle tuning, there is several posts in here by the op throughout the pages so try to really read thru it.
https://www.rx7club.com/showthread.php?t=841706
let your rx7 sit for a like half a day before starting it as well. and double check all your electrical connections in the engine bay.
#7
Senior Member
Thread Starter
Ok does anyone knows where I should start with the air adjustment screw with a street port? Ive done some searching and it seams like every car is really different. I've started at 1/4 out and 1/2 then a turn then 2,3,4 with it way out I get some back fire. Should I run different spark plugs than stock? I read a thread where a guy added the twin power and his car started should I try this I do plan on adding it later but I don't think I should have to have it for my car to just work.
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#8
Senior Member
Thread Starter
Ok i've charged the battery and adjusted the AAS and the TPS a little more and now the car will fire off if I hold the gas pedal down but will not stay running. And it only goes up to 5-700 rpms. Any thoughts on what to do next?
#9
Senior Member
Thread Starter
I finally got my car started for a while and tried to get the idle learn completed but the car shut off halfway through. I let the car sit for a while and now it wont start again I am completely out of ideas. The car will run but it doesn't like to. I've been searching the forums for two days now and still haven't figured this thing out. Any ideas?
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