MAP sensor and adapter

BlackV6 · 06-29-2011, 01:15 PM

I need to replace my 2002 3400 MAP to a 2 bar 3500 type. Does anyone have a part # and a source for an adapter to go from my 3400 harness to a 3500 style MAP
Thank you in adavance.

BlackV6 · 06-30-2011, 11:00 AM

Beuller....Beuller ?

01OldsAleroGt · 06-30-2011, 01:44 PM

since you are a fellow florida amodder, look up WOT-Tech, Ben just relocated down here to Florida

BlackV6 · 07-01-2011, 07:16 AM

Thanks

jabartram · 07-01-2011, 08:35 AM

i got both the new style sensor and pigtail off of ebay, and made my own hold down.

BlackV6 · 07-01-2011, 12:53 PM

You dont remember the part # for the new style 2 or 3 bar do you. I can fab a bracket. Thank so much

MMGT1 · 07-01-2011, 02:02 PM

I didn't think our PCM could support a 2 BAR MAP? In the PCM they top out at 140 or so I think. Is that high enough to support a 2 BAR? Also, if you delete the MAF these things go into SD mode banging gears at full pressure. This is why tuning MAP in the 3400 is such a bitch to do. You will destroy a factory trans mount in no time. If the car is not banging gears, you are not in the right mode to tune it, sucks!

[ion] C2 · 07-01-2011, 02:04 PM

You use HPTuners and scale the values. The transmission should be a non-issue as well, I would assume.

MMGT1 · 07-01-2011, 02:20 PM

Mind posting a screen shot of your MAP table? I'm curious now. I have herd of the guys scaling the MAP, but never knew if it would actually work. This is why I am using a MAF in my install. I am using the MAF from a Cobalt/Malibu/Corvette so I can get a poper reading out of it all the way to max air flow....
Tables are available from the guys on HP now for whatever size tube you install it in and there is even a guy kicking there now that is making the Honeycomb to fit any size piping I choose to use, pretty sweet actually!

[ion] C2 · 07-01-2011, 02:41 PM

As you can see, I don't have a 3400. I don't need to scale any values because I have a 2-bar tune based on the GMPP supercharger kit tune.

AleroB888 · 07-01-2011, 02:51 PM

Quote:

Originally Posted by MMGT1

I didn't think our PCM could support a 2 BAR MAP? In the PCM they top out at 140 or so I think. Is that high enough to support a 2 BAR? Also, if you delete the MAF these things go into SD mode banging gears at full pressure. This is why tuning MAP in the 3400 is such a bitch to do. You will destroy a factory trans mount in no time. If the car is not banging gears, you are not in the right mode to tune it, sucks!

Not only the MAP table, but the spark tables get maxed out as well. I've got a post somewhere in this sub-forum that discussed that, I'll look for it....

http://www.aleromod.com/forums/showthread.php?p=516593&highlight=scan+graph#post5 16593

MMGT1 · 07-01-2011, 08:34 PM

Quote:

Originally Posted by AleroB888

Not only the MAP table, but the spark tables get maxed out as well. I've got a post somewhere in this sub-forum that discussed that, I'll look for it....

http://www.aleromod.com/forums/showthread.php?p=516593&highlight=scan+graph#post5 16593

See, thats what Im talking about. So putting a 2-3 bar map on the car is pretty useless. That's terrible that you have to give up power due to a limit in the pcm with that table. What you have in there about it carrying the final value is right. Once exceeded, it will just hold that value.

unchained01 · 07-02-2011, 10:54 AM

the is it limited with an aftermarket device ? say a MS ? gotta get in touch with blkgagt on GAGT forum or ask milzy he put down 400 hp on the dyno and i am interested in seeing if he maxed his table out too AaronGTR is another good one to ask and he has plenty if scans to tell ya

MMGT1 · 07-02-2011, 12:06 PM

I know Milzy is running a piggy back that he designed himself on his. Pretty sure he is making it available to the public too.

BlackV6 · 07-07-2011, 07:37 AM

If I am only running 10-15 lbs of boost, you are saying that the 3400 computer cannot be tuned to see a 2 bar MAP?
Even with a third party software such as HPTuners?

AleroB888 · 07-07-2011, 12:22 PM

Quote:

Originally Posted by BlackV6

If I am only running 10-15 lbs of boost, you are saying that the 3400 computer cannot be tuned to see a 2 bar MAP?
Even with a third party software such as HPTuners?

You can get by with a stock 3400 PCM at 10-12 lbs boost, provided your boost control is very accurate and fail-safe. The results won't be optimum, but still allows for pretty good performance. 15 pounds is pushing it past the limit, with real potential for damage, unless you dial back the timing.

I have not kept up with the latest stuff available on HP Tuners. Tinytuner may have more options, though.

unchained01 · 07-08-2011, 01:39 PM

Tiny tuner does support 2 bar map sensor

kwhauck · 12-07-2011, 06:55 PM

Bump since I need this in a couple weeks......lol

unchained01 · 12-07-2011, 08:24 PM

You need what Kyle ? Map sensor part number ? Tiny tuner ?

kwhauck · 12-07-2011, 08:27 PM

Map sensor pigtail for 3400-3500 sensor connection, I have like 3 3500 map sensors, and I do need tiny tuners eventually, plus I was gonna go back and read some of Greg's tuning posts....