HPOP Gauge ?

[TooMuch03]

I have heard that tuning can lead to incorrect HPOP readings from the PCM, so what shows up on the Insight or scangauge might not be accurate. Is this true? Has anyone used an analog gauge to monitor HPOP? Autometer makes some for the 7.3, will those work on a 6.0?

Another one, probably a longshot, but has anyon ever tried to hook up an analog gauge to FICM voltage? I ask just because I like how gauges look, and sometimes I don't completely trust my PCM to give me good readings all the time... maybe I'm just paramoid

[windrunner408]

Yes if your truck is tuned for power other than stock, your ICP values will not be accurate readings of what is going on.
Several folks have used the HPOP guages from autometer, ISSPRO, etc to monitor ICP and yes the 7.3 one will work for the 6.0. I recommend ISSPRO but that is just me.
I would say you are just paranoid for the FICM voltage. There really isnt anyway to hook a guage up without splicing into the harness. You certainly wouldnt want to go through the cover and like solder leads to where you check FICM voltage with a voltmeter. I recommend just using something like a CTS or scanguage. JMO.

[06powerstroke06]

This is not always true. My 06 is tuned (obviously) has a ficm tune and it reads correctly on my AE and on my piggy backed isspro gauge. It's kinda hit or miss if it works or not.

[Term3]

This guy hooked up a gauge for FICM voltage. (near the end of the right up)
http://www.bscustoms.net/diesel/FICM.pdf

[TooMuch03]

That's interesting, I don't know how I feel about runnigna wire out of the FICM... I have Autometer Phantom II gauges (came with the truck) and as my luck would have it, they don't make a HPOP gauge in that style.

Nate, you are probably right that I am paranoid about trusting the scan gauge, but sometimes my readings from the OBD II don't match my gauges, like boost and tranny temp... I know my tranny temp gauge is not in the sam place as the factory sensor, but idk why the boost doesn't match up. That's why I kinda want all gauges

[pizza pig]

because the pcm is taking boost pressure from the map sensor, its never as accurate as an actual boost reading from an analog gauge... ICP is accurate, you have to tap the same sensor to get the reading anyway it reads what the sensor sees so there wont be any difference. Your trans temp issue is where your sensor is, I noticed this too when for ****s and giggles hooked a sensor into the test port one day to a regular temp gauge and it was a few degrees off.

[hazard]

so does the insight cs or cts monitor the correct icp or not? tuned or not tuned???

[windrunner408]

Ask your tuner if your ICP will read correctly through the OBDII port. I asked Chris at TSD and he said mine wouldnt. I can tell you when i monitor it with my CTS and running his tune it never really gets any higher than 1700psi. FWIW.

Installing a guage to piggy back off the ICP sensor is the only way to have it read correctly but I have also heard of a guy that did that and his still wouldnt read accurately when tuned so IDK.

[hazard]

when i monitor my icp (IDP x street tune) with my mac mentor it seems to read correctly, it starts at 500 psi then running through the motions it varies in psi all across the board i cannot remember the highest it got but higher than the 1700 psi you mentioned wildrunner... weird. My scan tool is obviously getting it info from the same location as the insight... maybe your right, matters what tuner you go with???

[Term3]

I know a guy that tied a nitrous gauge sending unit (only thing he could find that had the range) into one of the lines coming from the HPOP.