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Won't idle, no boost, please help

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vingasoline

20+ Year Contributor
101
1
Apr 20, 2003
Moose jaw, SK, Canada
I just rebuilt my engine. Top to bottom new everything. Everything is hooked up, vacuum reads 14hg with bc 272s.#

Here's the problem. It was idling good at 1000 rpms. Every 30 seconds the isc was clicking away. Took it for a drive. First stop gas station, ttied to get on boost, but nothing. #Couldnt even hear my rebuilt hx35 try to spool. #when I pulled up idle was 3000 rpms and holding. Shut down and filled her up. Restart, still 3000 rpms. # Left station and got on it in first, boost hit 1 psi and then felt like fuel cut. After that the car ran like shit all the way home. # Now the car will only idle if I hold the gas pedal.#

If I hold it at 1000rpms dsmlink says its 2000 rpms. Wtf???

Timing marks are dead on

All hoses, ic pipes, and vacuum lines are still connected.#

Only thing I noticed was the stock exhaust when I got home was extremely hot out the tail pipe. Burned my hand 6 inches away.#

I am still on the stock fuel and exhaust system for break in purposes

Any ideas?
 
I'll check that stuff in the morning. Stock injectors, wastegate has a 5 psi spring so I figured the stock injectors could handle it. Wideband is between 15 and 18. I just tested my isc and it has a bad coil. So I guess that explains the idle problem. No wreckers around here have dsms so can I remove that bi*** and block it off. I see link has a simulate idle switch from tps. Would that work?

Compression shows 160 on all 4. Can't do a vacuum test cause it won't run. Isc is good. Cyl 2 and 3 appear to be not firing. Plugs are soaked with gas. I am running a coil on plug setup with brand new coils.

Why does dsmlink tell me I'm running at 2000 rpms when I'm holding it at 1000?

Edit: it was a bad power transistor causing cyl 2 and 3 to not fire. Boost no longer feels like fuel cut. And it's running great. Thanks for the help.
 
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