All new parts but still 0 fuel pressure?
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Registered User
Joined: May 2003
Posts: 187
From: Michigan
All new parts but still 0 fuel pressure?
Hi friends 
I hope you're all doing very well.
So I was cruising on the freeway yesterday loving life when suddenly my TA just completely shut off. It didn't sputter or anything, just suddenly died. She did let off a pretty nasty backfire after she stalled though. My first thought was it's either the optispark or fuel pump - both of which were replaced 3 months ago.
After having it towed home, I hooked up a fuel pressure gauge and it read 0 at KOEO, and also while trying to start. Since I have a lifetime warranty on the pump (and a convenient trap door) I swapped it out and it still read 0.
3 months ago I replaced the fuel pump, optispark, fuel injectors, fuel pressure regulator, fuel filter and spark plugs.
Is it possible for an optispark failure to cause 0 fuel pressure? I read somewhere that the fuel system becomes inoperable if the optispark fails in a certain way.
Thank you so much
I hope you're all doing very well.
So I was cruising on the freeway yesterday loving life when suddenly my TA just completely shut off. It didn't sputter or anything, just suddenly died. She did let off a pretty nasty backfire after she stalled though. My first thought was it's either the optispark or fuel pump - both of which were replaced 3 months ago.
After having it towed home, I hooked up a fuel pressure gauge and it read 0 at KOEO, and also while trying to start. Since I have a lifetime warranty on the pump (and a convenient trap door) I swapped it out and it still read 0.
3 months ago I replaced the fuel pump, optispark, fuel injectors, fuel pressure regulator, fuel filter and spark plugs.
Is it possible for an optispark failure to cause 0 fuel pressure? I read somewhere that the fuel system becomes inoperable if the optispark fails in a certain way.
Thank you so much
Administrator
Joined: Nov 1998
Posts: 71,109
From: Hell was full so they sent me to NJ
Re: All new parts but still 0 fuel pressure?
Have you verified that the pump is getting power? ..... checked the fuse for the pump? Do you hear it running?
An active DTC 16 "shuts down" the fuel system, but it still allows the pump to prime for two seconds when the key is turned to “run". It only shuts down the pump when you turn the key to "start" and the ECM does not detect the low resolution pulse from the optical cam position sensor in the Opti.
An active DTC 16 "shuts down" the fuel system, but it still allows the pump to prime for two seconds when the key is turned to “run". It only shuts down the pump when you turn the key to "start" and the ECM does not detect the low resolution pulse from the optical cam position sensor in the Opti.