86 N/A troubles
06-12-2008, 05:05 PM
#1
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Ok..so I'm posting this for a friend of mine without internet access. He has an 86 na car that has been apart for a year and a half. I don't really know enough to help him either. Just recently he changed the fuel rail. Now its all put back together and it will crank, but not fire. The coil packs were tested and the car has spark. There is also fuel pressure. Ok...so from what I gather there is spark and fuel.....why no fire? Does anyone have any ideas? Also is there anyone with any expertise on rotarys in the Ohio area?
06-14-2008, 11:55 AM
#3
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Timing, absolutely. Before you do anything else make sure it's properly timed.
Need more information about the fuel rail swap.
Why did he switch fuel rails? Is the intake completely stock? What kind of fuel pressure do you have? Fuel pressure is awesome but you're not going anywhere with 4 pounds of pressure when you need 40 or better.
Need more information about the fuel rail swap.
Why did he switch fuel rails? Is the intake completely stock? What kind of fuel pressure do you have? Fuel pressure is awesome but you're not going anywhere with 4 pounds of pressure when you need 40 or better.
06-14-2008, 03:17 PM
#4
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Originally Posted by ColinRX7' post='901987' date='Jun 14 2008, 12:55 PM
Timing, absolutely. Before you do anything else make sure it's properly timed.
Need more information about the fuel rail swap.
Why did he switch fuel rails? Is the intake completely stock? What kind of fuel pressure do you have? Fuel pressure is awesome but you're not going anywhere with 4 pounds of pressure when you need 40 or better.
Need more information about the fuel rail swap.
Why did he switch fuel rails? Is the intake completely stock? What kind of fuel pressure do you have? Fuel pressure is awesome but you're not going anywhere with 4 pounds of pressure when you need 40 or better.
The fuel rail is a stocker off another 86. It was changed due to a pinhole in the original. It was all put back together and now it won't run with the new fuel rail. How can we go about timing the car if it won't start?
06-14-2008, 03:44 PM
#5
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Originally Posted by steitzybear' post='901992' date='Jun 14 2008, 09:17 PM
The fuel rail is a stocker off another 86. It was changed due to a pinhole in the original. It was all put back together and now it won't run with the new fuel rail. How can we go about timing the car if it won't start? 
06-14-2008, 09:13 PM
#7
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Originally Posted by teknics' post='901997' date='Jun 14 2008, 06:55 PM
yea im with dac, backwards fuel lines is my guess.
kevin.
kevin.
06-15-2008, 01:22 PM
#8
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I keep thinking you got a problem with the FPR, you never mentioned how much fuel pressure you had.
I mean if the FPR is dead, sure the fuel will be moving around and **** out the lines thanks to the fuel pump, but that's not an accurate way to check for fuel pressure. That FPR might just be letting the fuel go right back to the tank without any real pressure being built.
Make SURE you got ACTUAL fuel pressure.
It's hard to make injection pressure when the fuel pump is just cylcing fuel through the lines and straight back to the tank without any hold-up at the FPR.
I mean if the FPR is dead, sure the fuel will be moving around and **** out the lines thanks to the fuel pump, but that's not an accurate way to check for fuel pressure. That FPR might just be letting the fuel go right back to the tank without any real pressure being built.
Make SURE you got ACTUAL fuel pressure.
It's hard to make injection pressure when the fuel pump is just cylcing fuel through the lines and straight back to the tank without any hold-up at the FPR.
06-15-2008, 07:38 PM
#9
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Originally Posted by ColinRX7' post='902032' date='Jun 15 2008, 02:22 PM
I keep thinking you got a problem with the FPR, you never mentioned how much fuel pressure you had.
I mean if the FPR is dead, sure the fuel will be moving around and **** out the lines thanks to the fuel pump, but that's not an accurate way to check for fuel pressure. That FPR might just be letting the fuel go right back to the tank without any real pressure being built.
Make SURE you got ACTUAL fuel pressure.
It's hard to make injection pressure when the fuel pump is just cylcing fuel through the lines and straight back to the tank without any hold-up at the FPR.
I mean if the FPR is dead, sure the fuel will be moving around and **** out the lines thanks to the fuel pump, but that's not an accurate way to check for fuel pressure. That FPR might just be letting the fuel go right back to the tank without any real pressure being built.
Make SURE you got ACTUAL fuel pressure.
It's hard to make injection pressure when the fuel pump is just cylcing fuel through the lines and straight back to the tank without any hold-up at the FPR.
06-16-2008, 09:34 PM
#10
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