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Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com (https://www.camaro5.com/forums/index.php)
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-   -   nw102 issues (https://www.camaro5.com/forums/showthread.php?t=222094)

yotaman96 09-12-2013 12:42 PM
My tuner believes my TPIS is causing tuning issues. It doesn't always seem to respond to tuning commands. The idle varies from time to time and the car has gone in to reduced power mode twice while driving. I'm not talking WOT either. A couple of nights ago, it did it while I was slowing down to turn in to my driveway. WOT has been fine.

Flavorwrench 09-18-2013 01:47 PM
Without a scan file of the event, it's guess work.

yotaman96 09-18-2013 01:50 PM
I spoke to Jim at TPIS. He said he's seen this issue before and he knows what's wrong with it. I'm going to send it in for repair.

Andrew@SPItuning 09-18-2013 09:03 PM
We have sent our TPIS and our NW in for repair, and both still do not operate well with anything more than about 15 psi of boost. We have switched back to the stock 90mm and have not had any issues. Both 102's will be going back for repair and be used on N/A builds instead.

mikepage0007 09-19-2013 07:25 AM
Quote:
Originally Posted by yotaman96 (Post 6996871)
My tuner believes my TPIS is causing tuning issues. It doesn't always seem to respond to tuning commands. The idle varies from time to time and the car has gone in to reduced power mode twice while driving. I'm not talking WOT either. A couple of nights ago, it did it while I was slowing down to turn in to my driveway. WOT has been fine.
i had same issue, after days of trying differnent things, we came to conclusion it was th tpis, we put back the stock tb and car was fine..jim sent another one and car purred and no issues...hopefully he did not resend my retuned one back to you...sounds like exact same issue..also we spent hrs on dyno tuning and came to find there was only a 7rwhp gain over stock tb...same tuner-same dyno...imo...sure someone is gonna say different, but that was all the extra rwhp we gained from a 90 to a 102...

yotaman96 09-19-2013 08:08 AM
Quote:
Originally Posted by mikepage0007 (Post 7016563)
i had same issue, after days of trying differnent things, we came to conclusion it was th tpis, we put back the stock tb and car was fine..jim sent another one and car purred and no issues...hopefully he did not resend my retuned one back to you...sounds like exact same issue..also we spent hrs on dyno tuning and came to find there was only a 7rwhp gain over stock tb...same tuner-same dyno...imo...sure someone is gonna say different, but that was all the extra rwhp we gained from a 90 to a 102...
When I received it, I noticed it had been installed before. I was hoping it was just due to testing.

mikepage0007 09-20-2013 09:55 PM
it would always go into reduced power around 3000rpm when letting off the gas pedal ...for instance , driving down i95 at 80, and completely letting off the gas , would throw code and i would have to pull over , shut off engine , wait a couple minutes and it would reset...

1967rsss 09-22-2013 08:38 PM
Quote:
Originally Posted by Flavorwrench (Post 6779582)
All I can say is the spacer came today and I flipped the NW back like stock and holy shit we are cooking with gas now. Why I put it on wrong without hesitating is still my own mystery. I still need to do my 3rd gear WOT tests to make sure it's not going into limp. I did several 1st to 2nd WOT and it powered hard right through where it was going limp before. AFR was off and it was getting warm so that was it. It was like finding the banana in the tail pipe, totally different power now. Hopefully I won't need to go with the TPIS , but I appreciate knowing where one can be found... thanks
Where did you get the spacer from?

Flavorwrench 09-23-2013 06:16 AM
Quote:
Originally Posted by 1967rsss (Post 7027356)
Where did you get the spacer from?
1 - Holley 102mm Throttle Body flange PART #: 300-222
2 - Holley LS Modular "Hi–Ram" EFI 92/102mm Throttle Body Gasket PART #: 508-20
4 - Longer stainless screws/studs w/nuts (1/2" longer)

1967rsss 09-24-2013 07:24 PM
Quote:
Originally Posted by Flavorwrench (Post 7028007)
1 - Holley 102mm Throttle Body flange PART #: 300-222
2 - Holley LS Modular "Hi–Ram" EFI 92/102mm Throttle Body Gasket PART #: 508-20
4 - Longer stainless screws/studs w/nuts (1/2" longer)
Thanks. I'm going down this route very soon and still don't know which throttle body to go with.

Flavorwrench 09-24-2013 07:42 PM
My NW102 has worked perfect since I made the changes, the TPIS is quite a bit more $ but there is not a lot of choices. I was heading that way next though. I have a brand new 90mm that I ported and never installed, maybe I should sell it.

Makinrain 10-23-2013 11:29 AM
2012 ZL1
 
Interesting reading. Having problems with reduced power as well with NW102. All my codes are coming at fairly low speed/partial throttles and will sometimes not clear at all until the car sits. It started with a 2135 two different times and then after I cleared it threw out 1516 and 2119 and then cleared and got 0606, 0607, 1516, 2119. Car is making about 17psi and around 750 rwp. Runs perfect under wot and it doesn't do it every time. It wents days without repeating although its getting more frequent now.

mikepage0007 10-23-2013 09:04 PM
Quote:
Originally Posted by Makinrain (Post 7118626)
Interesting reading. Having problems with reduced power as well with NW102. All my codes are coming at fairly low speed/partial throttles and will sometimes not clear at all until the car sits. It started with a 2135 two different times and then after I cleared it threw out 1516 and 2119 and then cleared and got 0606, 0607, 1516, 2119. Car is making about 17psi and around 750 rwp. Runs perfect under wot and it doesn't do it every time. It wents days without repeating although its getting more frequent now.
almost same problem i had with the tpis, wot on the dyno was great no issues...soon as i take it on the interstae for some driving, any quick release of the gas pedal in the 2800 to 3300 rpm , would throw a code and put me in limp mode...new tpis has worked flawless..just a bad 1 i guess

Makinrain 10-24-2013 08:11 PM
Quote:
Originally Posted by mikepage0007 (Post 7120455)
almost same problem i had with the tpis, wot on the dyno was great no issues...soon as i take it on the interstae for some driving, any quick release of the gas pedal in the 2800 to 3300 rpm , would throw a code and put me in limp mode...new tpis has worked flawless..just a bad 1 i guess
What codes were you seeing?


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