JK Sprintex Owners issue list for Sprintex attention
04-11-2014, 06:31 PM
#121
Small boost leak was found today on the intercooler. I didnt tighten the bolt down. Its probably been leaking since i installed it. Jeep keeps a consistent speed on the highway, no more lurching and i gained almost 2mpg on my way home from work. All found because i thought my manifolds were cracked and they were fine btw.
04-11-2014, 06:42 PM
#122
JK Enthusiast
Join Date: Jun 2013
Location: Philadelphia, PA
Posts: 185
Likes: 0
Received 0 Likes
on
0 Posts
Hey guys, new to the forum and need some help.
Just installed a Sprintex SC on my buddy's 08 and am using Hypertechs tunes. I am getting P0300 codes and have triple checked everything and spent almost a hour and a half on the phone with Gary Turner this afternoon running down thru everything and are coming up empty handed.
Engine has 5k on it as the previous one ate a rod bearing. New plugs gapped @.050" new wires as well.
Full tank of 93 octane. New battery, K&N cold air kit, headers and AFE cat back exhaust system.
It seems that the misfiring gets worse as engine temps get up to operating temps.
Have done carb cleaner checks at all places where if a leak was present, something should have shown. MAP sensor is at 2.09v and oring is good.
Absolutely no help from Hypertech.
Gonna get ahold of a scanner to see what fuel trim is setting at.
Gary suggested trying another MAP sensor to see if that makes a difference.
Anybody have this issue?
Just installed a Sprintex SC on my buddy's 08 and am using Hypertechs tunes. I am getting P0300 codes and have triple checked everything and spent almost a hour and a half on the phone with Gary Turner this afternoon running down thru everything and are coming up empty handed.
Engine has 5k on it as the previous one ate a rod bearing. New plugs gapped @.050" new wires as well.
Full tank of 93 octane. New battery, K&N cold air kit, headers and AFE cat back exhaust system.
It seems that the misfiring gets worse as engine temps get up to operating temps.
Have done carb cleaner checks at all places where if a leak was present, something should have shown. MAP sensor is at 2.09v and oring is good.
Absolutely no help from Hypertech.
Gonna get ahold of a scanner to see what fuel trim is setting at.
Gary suggested trying another MAP sensor to see if that makes a difference.
Anybody have this issue?
A bit of a smartass but he should answer the phone and help you out.
Sent from my iPhone using Tapatalk
04-15-2014, 08:06 PM
#123
Former Vendor
Join Date: Mar 2013
Location: San Diego
Posts: 241
Likes: 0
Received 0 Likes
on
0 Posts
Hey guys, new to the forum and need some help.
Just installed a Sprintex SC on my buddy's 08 and am using Hypertechs tunes. I am getting P0300 codes and have triple checked everything and spent almost a hour and a half on the phone with Gary Turner this afternoon running down thru everything and are coming up empty handed.
Engine has 5k on it as the previous one ate a rod bearing. New plugs gapped @.050" new wires as well.
Full tank of 93 octane. New battery, K&N cold air kit, headers and AFE cat back exhaust system.
It seems that the misfiring gets worse as engine temps get up to operating temps.
Have done carb cleaner checks at all places where if a leak was present, something should have shown. MAP sensor is at 2.09v and oring is good.
Absolutely no help from Hypertech.
Gonna get ahold of a scanner to see what fuel trim is setting at.
Gary suggested trying another MAP sensor to see if that makes a difference.
Anybody have this issue?
Just installed a Sprintex SC on my buddy's 08 and am using Hypertechs tunes. I am getting P0300 codes and have triple checked everything and spent almost a hour and a half on the phone with Gary Turner this afternoon running down thru everything and are coming up empty handed.
Engine has 5k on it as the previous one ate a rod bearing. New plugs gapped @.050" new wires as well.
Full tank of 93 octane. New battery, K&N cold air kit, headers and AFE cat back exhaust system.
It seems that the misfiring gets worse as engine temps get up to operating temps.
Have done carb cleaner checks at all places where if a leak was present, something should have shown. MAP sensor is at 2.09v and oring is good.
Absolutely no help from Hypertech.
Gonna get ahold of a scanner to see what fuel trim is setting at.
Gary suggested trying another MAP sensor to see if that makes a difference.
Anybody have this issue?
04-16-2014, 04:16 AM
#124
JK Newbie
Join Date: Nov 2013
Location: RSA
Posts: 60
Likes: 0
Received 0 Likes
on
0 Posts
p0300
I had this problem at higher revs when the tune I was given had too much advance. It also caused the check engine light to flash. But google says:
Faulty spark plugs or wires
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector(s)
Burned exhaust valve
Faulty catalytic converter(s)
Stuck/blocked EGR valve / passages
Faulty camshaft position sensor
Defective computer
Faulty spark plugs or wires
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector(s)
Burned exhaust valve
Faulty catalytic converter(s)
Stuck/blocked EGR valve / passages
Faulty camshaft position sensor
Defective computer
04-16-2014, 05:38 AM
#125
JK Newbie
Join Date: Apr 2014
Location: Australia
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
I first test drove a 2 door jeep with a sprintex and thought it was pretty average and not worth the money,
But being Australian I thought I'd support local, and bought one myself. I do however have an aftermarket exhaust 2.5", snorkel and hi flow cats.
I installed it at work then took it straight to a dyno shop and didnt even bother with the program that came with the super charger.
After the dyno run $500 mine runs awsome. soooooo much better than the original one i ran. Goes even harder than a mates who has an intercooled magnusun kit on his.
Very happy with my sprintex now.
I suggest to anyone take it to get a tune from a dyno shop staright away. Then you will have a great running car with out all the tuning fuss.
I'd say the exhaust and hi flow cats made a big difference too.
But being Australian I thought I'd support local, and bought one myself. I do however have an aftermarket exhaust 2.5", snorkel and hi flow cats.
I installed it at work then took it straight to a dyno shop and didnt even bother with the program that came with the super charger.
After the dyno run $500 mine runs awsome. soooooo much better than the original one i ran. Goes even harder than a mates who has an intercooled magnusun kit on his.
Very happy with my sprintex now.
I suggest to anyone take it to get a tune from a dyno shop staright away. Then you will have a great running car with out all the tuning fuss.
I'd say the exhaust and hi flow cats made a big difference too.
04-20-2014, 03:45 PM
#126
JK Newbie
Join Date: Apr 2014
Location: Decatur
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
I initially called Hypermax, not sure who I talked to, but was instantly told it was an installation error as their tunes are fine.
That did not set well with me. Wasn't even offering to help trouble shoot the issues and as a mechanic, no customer support= no business from me.
We've ordered a wide band O2 sensor and since the Hypertech update actually makes it start harder than the default tune that came with the charger kit, we will be going with a Diablo at this point.
Pretty frustrated with this charger setup at this point tho.
04-21-2014, 07:57 AM
#127
4 days without my sprintex. Almost 18mpg with about 200 miles on stock. My sprintex would be 11-12mpg with the same driving. Yes my power is gone, but my mpgs are up, she actually shifts better on the stock tune and highway cruising is smooth. No more bloody surging which would make my gf almost car sick. Im happy i removed mine, besides the power lose
I also remember another forum guy on here, blue rubicon fully built, he also had the sprintex and hated the mpg. Took his off and his mpg went back to normal with a couple days. If its not a dd, no issues, but for me being dd, it was killing me at the pump.
I also remember another forum guy on here, blue rubicon fully built, he also had the sprintex and hated the mpg. Took his off and his mpg went back to normal with a couple days. If its not a dd, no issues, but for me being dd, it was killing me at the pump.
Last edited by courtsm3; 04-21-2014 at 08:02 AM.
05-23-2014, 04:52 AM
#128
JK Newbie
Join Date: Jan 2014
Location: Russia. Moscow city
Posts: 28
Likes: 0
Received 0 Likes
on
0 Posts
I suppose that it is necessary to replace the spark plugs on the others. Maybe you hooked up the wires incorrectly? once had a similar problem during heavy acceleration (5000+ rpm), I got the code p0301 and triple engine flash. All well done - I replaced spark plugs.
05-23-2014, 05:07 AM
#129
JK Newbie
Join Date: Feb 2014
Location: Sydney
Posts: 5
Likes: 0
Received 0 Likes
on
0 Posts
Uneek, was this the 36 or 3.8 ?
Sent from my iPad using Tapatalk HD
But being Australian I thought I'd support local, and bought one myself. I do however have an aftermarket exhaust 2.5", snorkel and hi flow cats.
I installed it at work then took it straight to a dyno shop and didnt even bother with the program that came with the super charger.
I'd say the exhaust and hi flow cats made a big difference too.
I installed it at work then took it straight to a dyno shop and didnt even bother with the program that came with the super charger.
I'd say the exhaust and hi flow cats made a big difference too.
Sent from my iPad using Tapatalk HD
