HP Tuners what do I need
Thread Starter
Staging Lane
Joined: Jul 2024
Posts: 59
Likes: 3
From: San Diego
HP Tuners what do I need I was going to send my car to a shop to have them plug into my computer and figure to why it is not starting. This means having it towed to the shop and then paying for hours of labor for diagnostic. I was also thinking of just buying the HP Tuners myself and doing it at home. From the website it looks like I need the MPVI3 to plug into my OBD2 port then download the software to my computer. Then it looks like I can download the current profile and if I want to make changes I have to buy credits but just looking at the program is free, except the cost of the MPVI3, correct?
TECH Fanatic
Joined: Dec 2017
Posts: 1,467
Likes: 265
From: Bossier City, Louisiana
Hello,
HP Tuners is expensive / complicated (but useful for many things) when a simple OBD2 Bluetooth module and a cell phone software app might be all that you need. I like the free Android "Car Scanner" app and a 15-20 dollar Konnwei or Nexas or OBD Link Bluetooth module that will display the 25-30 OBD2 parameters that are important to me. No "credits" required.
You can always step up to HP Tuners later.
Rick
HP Tuners is expensive / complicated (but useful for many things) when a simple OBD2 Bluetooth module and a cell phone software app might be all that you need. I like the free Android "Car Scanner" app and a 15-20 dollar Konnwei or Nexas or OBD Link Bluetooth module that will display the 25-30 OBD2 parameters that are important to me. No "credits" required.
You can always step up to HP Tuners later.
Rick
Thread Starter
Staging Lane
Joined: Jul 2024
Posts: 59
Likes: 3
From: San Diego
Hello,
HP Tuners is expensive / complicated (but useful for many things) when a simple OBD2 Bluetooth module and a cell phone software app might be all that you need. I like the free Android "Car Scanner" app and a 15-20 dollar Konnwei or Nexas or OBD Link Bluetooth module that will display the 25-30 OBD2 parameters that are important to me. No "credits" required.
You can always step up to HP Tuners later.
Rick
HP Tuners is expensive / complicated (but useful for many things) when a simple OBD2 Bluetooth module and a cell phone software app might be all that you need. I like the free Android "Car Scanner" app and a 15-20 dollar Konnwei or Nexas or OBD Link Bluetooth module that will display the 25-30 OBD2 parameters that are important to me. No "credits" required.
You can always step up to HP Tuners later.
Rick
12 Second Club
Joined: Dec 2017
Posts: 1,030
Likes: 220
From: San Antonio
I was going to send my car to a shop to have them plug into my computer and figure to why it is not starting. This means having it towed to the shop and then paying for hours of labor for diagnostic. I was also thinking of just buying the HP Tuners myself and doing it at home. From the website it looks like I need the MPVI3 to plug into my OBD2 port then download the software to my computer. Then it looks like I can download the current profile and if I want to make changes I have to buy credits but just looking at the program is free, except the cost of the MPVI3, correct?
Moderator
Joined: Aug 2010
Posts: 7,323
Likes: 529
From: Ann Arbor, MI
With the "411" PCM and likely some similar ones, if VATS is enabled the car will start just fine, but only run for about 1 second.
While HP Tuners can read codes, that is way overkill; downloading the tune is not going to tell you why you car won't start. Well, unless HP Tuners says it cannot even read you PCM, in which case it may be bricked or not connected correctly.
You just need to test for fuel and spark. (Assuming you have compression.)
Test for fuel pressure on the rail, if there, test injectors with a "Noid" light. If no light, check fuses for the injectors.
Test for spark. If no spark, check fuse for coils and/or check for +12V on the coils. If +12V to coils, but no spark, could be wiring problem, bad crank sensor or rarely things like bad PCM or broken reluctor wheel on crank.
While HP Tuners can read codes, that is way overkill; downloading the tune is not going to tell you why you car won't start. Well, unless HP Tuners says it cannot even read you PCM, in which case it may be bricked or not connected correctly.
You just need to test for fuel and spark. (Assuming you have compression.)
Test for fuel pressure on the rail, if there, test injectors with a "Noid" light. If no light, check fuses for the injectors.
Test for spark. If no spark, check fuse for coils and/or check for +12V on the coils. If +12V to coils, but no spark, could be wiring problem, bad crank sensor or rarely things like bad PCM or broken reluctor wheel on crank.
