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Forced Induction Superchargers | Turbochargers | Intercoolers

Help with sluggish running and back fire.

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Old Apr 5, 2015 | 12:53 PM
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Scan it with HPT.
Make sure throttle position is in the log.
You don't even need to start the car.
Key in, scanner running, work the throttle and see if TPS goes between 0 and 100%

Is it DBW or a cable?
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Old Apr 5, 2015 | 04:07 PM
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Originally Posted by RonSSNova
Scan it with HPT.
Make sure throttle position is in the log.
You don't even need to start the car.
Key in, scanner running, work the throttle and see if TPS goes between 0 and 100%

Is it DBW or a cable?
I tried this, and it works on the log. I think it's cable.
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Old Apr 5, 2015 | 04:53 PM
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Found this on the PCM Harness. The green/white wire and the Tanish colored wire actually pulled completely apart. Not sure what they actually go to. Can anyone tell me that?
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Old Apr 6, 2015 | 06:39 PM
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Repaired the wires. I was thinking one of them went to a fuel pump relay? Car still doesn't drive any better. I'm stuck on what to do next.
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Old Apr 9, 2015 | 09:00 PM
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Anyone?
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Old Apr 10, 2015 | 11:15 PM
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post a log of your last drive.
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Old Apr 13, 2015 | 08:04 AM
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I will post one tonight.

I was told that I may have a plugged fuel injector.
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Old Apr 13, 2015 | 08:13 PM
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Attached is my last log.
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Old Apr 15, 2015 | 06:34 AM
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post the tune and what the actual setup is. There is never boost registered with the map and you went WOT several times. Something definitely isn't right. Looks as if the "tuner" bent you over.
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Old Apr 15, 2015 | 07:18 AM
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Boost is off right now. Trying to get the motor going first.
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Old Apr 15, 2015 | 09:41 AM
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So how is the boost off? You have a one bar map sensor. are you running a two bar OS?
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Old Apr 15, 2015 | 09:42 AM
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98 is correct you will need to post the tune and the exact combo.
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Old Apr 15, 2015 | 10:15 AM
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Originally Posted by viper6549
So how is the boost off? You have a one bar map sensor. are you running a two bar OS?
I have an adjustable **** to adjust psi. It's all the way off right now.
3 bar map.
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Old Apr 15, 2015 | 10:16 AM
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Originally Posted by viper6549
98 is correct you will need to post the tune and the exact combo.
I'll post the info tonight.
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Old Apr 15, 2015 | 02:05 PM
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Boost is down all the way. Just wastegate.
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Old Apr 15, 2015 | 02:09 PM
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Originally Posted by onesloGTO
Boost is down all the way. Just wastegate.
Are you logging a three bar map in hptuners? Is it building boost on wastegate spring?
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Old Apr 15, 2015 | 02:17 PM
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Originally Posted by onesloGTO
I have an adjustable **** to adjust psi. It's all the way off right now.
3 bar map.
Originally Posted by onesloGTO
Boost is down all the way. Just wastegate.
That's called a manual boost controller. I'm sure you have a 7lb spring in the gate. so you should see the boost of whatever your spring is with it "off". You should definitely be seeing boost WOT. If not, check the seating surface for the wastegate.
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Old Apr 15, 2015 | 04:57 PM
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Originally Posted by viper6549
Are you logging a three bar map in hptuners? Is it building boost on wastegate spring?
I'm not sure. I'm having someone else tune it. I don't know much about it. I don't see any boost on the gauge.
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Old Apr 15, 2015 | 05:21 PM
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Here is the current tune.

Current Setup:

04 5.3 stock bottom end
243 heads stock
arp studs
ls9 head gaskets
comp cams dual springs
custom grind boost cam 114lsa
mpt70 turbo .96 ar
KY turbo kit 3in down pipe
50mm bov
41mm waste gate
80lb injectors
fast fuel rails
ls6 intake
performabuilt 4l60E stage 2
3600 edge converter
stock 10 bolt 3:37 gears from motive
twin granatelli 340 fuel pumps in tank
Attached Files
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Old Apr 15, 2015 | 05:26 PM
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Originally Posted by 98Camarod
That's called a manual boost controller. I'm sure you have a 7lb spring in the gate. so you should see the boost of whatever your spring is with it "off". You should definitely be seeing boost WOT. If not, check the seating surface for the wastegate.
What should I be looking for?

I'm new to forced induction.
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