Tracking down no primary boost
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Location: Indiana
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Tracking down no primary boost
Hoping for some guidance on this one.
Mods
HKS racing suction
Full turbo back exhaust with a high flow cat
PFC (tuned by banzai)
Twin power
Since it was tunes early this year it has been running fantastic. It has 24000 original Mike's and has been in the family it's entire life. I just drive it on the street as a weekend cruiser. I don't beat up on her, unless on the interstate and want to go fast.
I put it in the garage on the Tuesday before memorial day after an evening cruise and everything ran great. I went Tuesday, 5/28, to take her out for a drive and it was very hard to start. It has never been hard to start, not even a little. When it was compression tested in the spring the numbers were well in the green on both rotors. I got it running and it just wanted to fall on it's face. I got it on the road and slowly started to drive it. No primary boost at all, gauge reads vacuum at all times. If I get up to 4500, then I get full secondary boost.
I have been to the actuators on the turbos and the c clips are intact, and they are remaining closed as intended on start up.
I've done the beat visual inspection of the vacuum lines that I can. I went through it while it was running and revving it and also hear a loud scream out of the intake pipe while revving it by hand under the hood.
Before I start in taking off the UIM and going through testing the rats nest, is there anything else I should be looking into? Have I just friend a turbo?
Mods
HKS racing suction
Full turbo back exhaust with a high flow cat
PFC (tuned by banzai)
Twin power
Since it was tunes early this year it has been running fantastic. It has 24000 original Mike's and has been in the family it's entire life. I just drive it on the street as a weekend cruiser. I don't beat up on her, unless on the interstate and want to go fast.
I put it in the garage on the Tuesday before memorial day after an evening cruise and everything ran great. I went Tuesday, 5/28, to take her out for a drive and it was very hard to start. It has never been hard to start, not even a little. When it was compression tested in the spring the numbers were well in the green on both rotors. I got it running and it just wanted to fall on it's face. I got it on the road and slowly started to drive it. No primary boost at all, gauge reads vacuum at all times. If I get up to 4500, then I get full secondary boost.
I have been to the actuators on the turbos and the c clips are intact, and they are remaining closed as intended on start up.
I've done the beat visual inspection of the vacuum lines that I can. I went through it while it was running and revving it and also hear a loud scream out of the intake pipe while revving it by hand under the hood.
Before I start in taking off the UIM and going through testing the rats nest, is there anything else I should be looking into? Have I just friend a turbo?
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