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The Terminator
Engine/Tuning
Fuel related problem....NEED HELP!!
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<blockquote data-quote="turbov6joe" data-source="post: 15074982" data-attributes="member: 95661"><p>UPDATE</p><p>I data logged the fuel pressure at idle and it was reading 60 psi with the line on. I removed the line and it dropped to 40 psi. I put a vacuum gauge on the FRPS line and it read 20" of vacuum, so I know that was right. Here is where is gets weird. I ran the same procedure a few more times and the drop was only 10 psi, even though the vacuum was verified at 20". Why would it drop 20 psi one time, then only 10 psi the next few??? I replaced both FPDM's with 4 different ones and that didn't help either. My main issue is that my FP is too high at idle, falls off during a pull for a second, then jumps back up. I'm going to check the voltage at the pumps to see what that is at idle. Anyone know what that should be at idle?</p></blockquote><p></p>
[QUOTE="turbov6joe, post: 15074982, member: 95661"] UPDATE I data logged the fuel pressure at idle and it was reading 60 psi with the line on. I removed the line and it dropped to 40 psi. I put a vacuum gauge on the FRPS line and it read 20" of vacuum, so I know that was right. Here is where is gets weird. I ran the same procedure a few more times and the drop was only 10 psi, even though the vacuum was verified at 20". Why would it drop 20 psi one time, then only 10 psi the next few??? I replaced both FPDM's with 4 different ones and that didn't help either. My main issue is that my FP is too high at idle, falls off during a pull for a second, then jumps back up. I'm going to check the voltage at the pumps to see what that is at idle. Anyone know what that should be at idle? [/QUOTE]
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Fuel related problem....NEED HELP!!
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