I need help lol. ( new to this ) don’t bash me.
Mar 15, 2018 | 01:26 PM
#1
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I need help lol. ( new to this ) don’t bash me.
I have a 2009 “ police pursuit “ Tahoe with the 5.3. I’ve recently installed the Brian tooley DOD delete. Ls6 valve springs, lS7 lifters, stage 1 truck cam, new oil pump, valve seals, changed the 1 bolt cam gear to the 3. Truck started and ran for a little while & once shut off when hot it doesn’t want to start again. ( I figured it was a tuning issue ) I bring it to the tuners he throws a base tune on it to get it to run so he can put it on the dyno & it won’t start for him. He checks for codes and is getting a cam pos sensor code. ( currently he’s ordering a new sensor for it ) everything seems mechanically correct & I might be jumping the gun it could just be a bad sensor but does anyone have any knowledge on this ??? Please help lol.
Mar 16, 2018 | 11:24 AM
#7
Teching In
Joined: Feb 2018
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I probably assumed wrong in the fact that he went from a single bolt cam to a 3 bolt cam that he deleted VVT also, in which case he would need a different front cover. I guess the better thing to ask would be if the cover/sensor/and cam gear are all correct to work together. Example being a 4x sensor and cam gear with a ls3 front cover.
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Mar 16, 2018 | 07:46 PM
#8
Staging Lane
Joined: Oct 2017
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I probably assumed wrong in the fact that he went from a single bolt cam to a 3 bolt cam that he deleted VVT also, in which case he would need a different front cover. I guess the better thing to ask would be if the cover/sensor/and cam gear are all correct to work together. Example being a 4x sensor and cam gear with a ls3 front cover.
okay, I see what you’re saying; if the motor had vvt and he deleted the AFM/DOD without changing the front cover to a ls2/3 style, then yeah the cam sensor would not work when using a non vvt cam. The reason being, the vvt front cover places the cam sensor too far out from the cam gear.
Mar 16, 2018 | 07:50 PM
#9
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Hey guys, I actually had the wrong cam gear, I had a 3 bolt 1x i switched it to a 3 bolt 4x and got it tuned it put down a little over 300HP to the wheels & 320tq but now I have a slight misfire and can smell raw fuel. Fuel pressure is good. Maybe one of the injectors got messed up while working on it? Should I replace the injectors ? I need all the help I can get lol.
Mar 16, 2018 | 08:02 PM
#10
Replace the o-rings and check the line going to the rail.
You shouldn't be out flowing the injectors on a 5.3 being a 2009, they are fairly large for the size engine even stock. So replacing the injectors is kinda pointless.
You shouldn't be out flowing the injectors on a 5.3 being a 2009, they are fairly large for the size engine even stock. So replacing the injectors is kinda pointless.