bmxludwig wrote:Scarab (Jersey Jay 1.8T) wrote:lol.... why does it seem that so many cavalier owners don't know they have passlock, and/or don't know how to "relearn" it?
I don't see how a 99 can NOT have a 2nd O2 sensor.... secondary O2 is MANDATORY as per OBD2 regulations because the ecu HAS to have some way to monitor catalytic converter efficiency.......
Anyway, 165 with your high compression build and no tuning is not a bad starting point at all... Hopefully this new ecu will work out for you.
Pauls car is a 97, with only one o2 sensor, the 99' ecu prolly was made for a car with two. The second o2 sensor is worthless to him anyways, he has no emissions equipment on the car really anymore.
Even a 97 (OBD2) should have a 2nd o2 sensor, while it may be "worthless" in this situation, it was still there from the factory.
P&P Tuning
420.5whp / 359.8wtq
ImPhat0260/Cavattack2000 wrote:bmxludwig wrote:Scarab (Jersey Jay 1.8T) wrote:lol.... why does it seem that so many cavalier owners don't know they have passlock, and/or don't know how to "relearn" it?
I don't see how a 99 can NOT have a 2nd O2 sensor.... secondary O2 is MANDATORY as per OBD2 regulations because the ecu HAS to have some way to monitor catalytic converter efficiency.......
Anyway, 165 with your high compression build and no tuning is not a bad starting point at all... Hopefully this new ecu will work out for you.
Pauls car is a 97, with only one o2 sensor, the 99' ecu prolly was made for a car with two. The second o2 sensor is worthless to him anyways, he has no emissions equipment on the car really anymore.
Even a 97 (OBD2) should have a 2nd o2 sensor, while it may be "worthless" in this situation, it was still there from the factory.
sorry mang
it didnt come with one. ive seen it. no wiring for it, nothing. i always thought it was weird as hell, but then i learned it was from mexico and to me that makes sense, is it really that hard to believe they possibly dont have as high of standards on emissions as we do?
iirc paul never threw any 2nd 02 error CEL's either.
as far as joey at excessive goes, he definatly seemed to know his shiit IMO, he told me he tunes around 15 cars a week using HPT. and he did email HPT right then and there and got a response back right away-THEY told HIM it was un-supported.
they told him that my vin # was not supported.
97's did not come with a secondary O2. My 97 didnt, when I put the 99 Engine in with the wiring and PCM, there was a plug for the rear O2, but no rear O2. I will just disable that with HPT anyways.
As for the mexican PCM, u sure that they didnt support it? Alot of the time, you just have to email the file to HPT for them to unlock it, takes about a week or so.
whatever i guess the 99 ecu is now in the the car running. hopefully tomorrow or Wednesday of next week its done.
Its some what odd but the new ecu seems to be learning what its doing better or something its not as lopy and it doesnt try to die when coming to a stop.
ImPhat0260/Cavattack2000 wrote:Even a 97 (OBD2) should have a 2nd o2 sensor, while it may be "worthless" in this situation, it was still there from the factory.
I agree, if it was destined to be a USDM vehicle, it would have to abide for emission standards for the USA (even '96's have the 2nd O2)
z yaaaa wrote:sorry mang it didnt come with one. ive seen it. no wiring for it, nothing. i always thought it was weird as hell, but then i learned it was from mexico and to me that makes sense, is it really that hard to believe they possibly dont have as high of standards on emissions as we do?
Just because it was made in Mexico doesnt mean it doesnt have to follow US Regulations (since its destined for sale here, in most cases). I would be interested in seeing the RPO codes for that car, or better yet a VIN report. If someone PM's me the VIN, I can have a VIN Report done and find out.
gtpsunfire wrote:97's did not come with a secondary O2. My 97 didnt, when I put the 99 Engine in with the wiring and PCM, there was a plug for the rear O2, but no rear O2. I will just disable that with HPT anyways.
As for the mexican PCM, u sure that they didnt support it? Alot of the time, you just have to email the file to HPT for them to unlock it, takes about a week or so.
My '97 had it, Jake's '96 has it, Paul's (BlackFlame) '96 2.2 had one...... I've never seen one w/o one ('96+). Now, I'm not saying its not possible...... my only thought is that it was a vehicle not destined to be a USDM vehicle.
SPD RCR Z -
'02 Z24 420whp
SLO GOAT -
'04 GTO 305whp
W41 BOI -
'78 Buick Opel Isuzu W41 Swap
^^^^
Quote:
SpeedRacerZ Online
Today 12:38 PM
ImPhat0260/Cavattack2000 wrote:
Even a 97 (OBD2) should have a 2nd o2 sensor, while it may be "worthless" in this situation, it was still there from the factory.
I agree, if it was destined to be a USDM vehicle, it would have to abide for emission standards for the USA (even '96's have the 2nd O2)
z yaaaa wrote:
sorry mang it didnt come with one. ive seen it. no wiring for it, nothing. i always thought it was weird as hell, but then i learned it was from mexico and to me that makes sense, is it really that hard to believe they possibly dont have as high of standards on emissions as we do?
Just because it was made in Mexico doesnt mean it doesnt have to follow US Regulations (since its destined for sale here, in most cases). I would be interested in seeing the RPO codes for that car, or better yet a VIN report. If someone PM's me the VIN, I can have a VIN Report done and find out.
gtpsunfire wrote:
97's did not come with a secondary O2. My 97 didnt, when I put the 99 Engine in with the wiring and PCM, there was a plug for the rear O2, but no rear O2. I will just disable that with HPT anyways.
As for the mexican PCM, u sure that they didnt support it? Alot of the time, you just have to email the file to HPT for them to unlock it, takes about a week or so.
My '97 had it, Jake's '96 has it, Paul's (BlackFlame) '96 2.2 had one...... I've never seen one w/o one ('96+). Now, I'm not saying its not possible...... my only thought is that it was a vehicle not destined to be a USDM vehicle.
Thats my thought as well i don't think the car was destined to be sold in the US.
But like i said it should be all figured out now new 99 vin# starting with 1g should be supported. I still dont understand why its not supported Only differance i see is the rear o2.
PM your VIN, I'll run a report on it.. I'm interested now..
P&P Tuning
420.5whp / 359.8wtq
what does the emissions label under the hood say? it would say if it was compliant to US emissions standards.
Did you repin the Knock sensor for the 99 ECM?
SPD RCR Z -
'02 Z24 420whp
SLO GOAT -
'04 GTO 305whp
W41 BOI -
'78 Buick Opel Isuzu W41 Swap
SpeedRacerZ wrote:Did you repin the Knock sensor for the 99 ECM?
no he didnt, but why would he need to if the car runs? i bet he got a earlier 99 one.
I was looking through the vin decoder from the faq. If the 5th digit is an H then it says cavalier z24(export), where as if it's an F then it's just a z24.
mine is a 97 and no 2nd O2, my 97 sunfire doesn't have it and my friend's 97 z24 doesn't the 2nd O2. i'm in canada...
man, now i cant wait to take mine on the dyno. should be soon. as soon as the engine is reassembled and put back in.
SpeedRacerZ wrote:what does the emissions label under the hood say? it would say if it was compliant to US emissions standards.
Did you repin the Knock sensor for the 99 ECM?
Brain what do you mean by the knock sensor??????repin?
the 99+ uses a 2 wire knock sensor..... aposed to the one wire found on the 97-98. You need to repin one wire, and add another (we usually just use a EGR wire, and repin that..... much easier then running a new wire around the engine bay)
Right now, I'm betting you have no knock sensor.
SPD RCR Z -
'02 Z24 420whp
SLO GOAT -
'04 GTO 305whp
W41 BOI -
'78 Buick Opel Isuzu W41 Swap
if that was the case the car wouldnt run correct?
paul, your 99 daily driver z-does it have an egr...??? 99 was a transition year, half was basically 96-98, and half was 00-02.
im still saying your new VCM is from the eariler part of 99.
mine dd is a 97 this is my last post for the month so here the vin# of the new ecu if some could run a report on it to see if it was an early 99 or a late 99 and what date it was manufactured that be great you can pm me or post it on here thanks guys i appreciate it.
My 97 2.2L base model built in the us has only one o2 sensor. There is also no sticker that it meets any emissions standards in the engine bay. Theres and airbag one, a don't put your hands in the belts one, accessory drive diagram and a Canadian electrical thing for the ignition and one other one.
What's the deal?
Paul Tjepkes (N/A MADNESS) wrote:mine dd is a 97 this is my last post for the month so here the vin# of the new ecu if some could run a report on it to see if it was an early 99 or a late 99 and what date it was manufactured that be great you can pm me or post it on here thanks guys i appreciate it.
lmao, you forgot the VIN !!!! PM it to me, I'll snd you the info..
P&P Tuning
420.5whp / 359.8wtq
lol thats strange that mine is Prob. the Only 97 J with the 2nd o2 sensor. Nice numers tho man. i hope you get it figured out.
Edited 1 time(s). Last edited Friday, August 31, 2007 6:00 AM
99z for 2015.. I'm back bitches
I think with no knock sensor it would run fine but throw a code. The only time i think it would run bad is if yo had knock it wouldn't try and stop it.
Mr. McD wrote:lol thats strange that mine is Prob. the Only 97 J with the 2nd o2 sensor. Nice numers tho man. i hope you get it figured out.
my 97z has the 2nd 02 as well.
hmm, does anyone know if pre 99 Canadian J's (J's meant for sale in canada) have the 2nd o2 at all? Brian says there should be an emisions label to meet us standards, well I don't see why cars in canada have to pass us emissions standards since we have different laws on a lot of things. I bet it was a way for gm to save $10 or so on every J sold up here in the great white north.
Jesus, no one gets it.
Its been said many times already in this post.
If your car was built in 1996 or later and was intended to be sold in the U.S. as in United States market, it will have a second O2. This was required by federal law.
This has nothing to do with where the car was built, only where it was supposed to be sold.
Canadian market - no idea if it has a 2nd sensor or was required.
Japan market - no idea
Mexican - no idea
The whole HP support of 'mexican' processors seems to be more about the usual HP putting in the whole 13% for J owners that they usually do. They have an excuse not to do the work to decode that PCM and they choose to use it.
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