aqadavey1

iTrader: (1)

Hello LS1 fans and thanks in advance for any help and guidance you can give me.
I have a 99 LS1 swap into a 91 camaro. I just failed the referee becuse he did not like my egr solenoid configuration. It is just like the 00 egr configuration which my engine guy says came on some late 99 camaros. I cannot confirm this however, although he says he has had two cars with this configuration. His brothers current car is like this as well. Although my car passed the roller test with flying colors, He failed me for visual. In addition I had a code P0412 Secondary air injection system valve A malfunction. My harness looks like a typical 00 camaro harness and I am using the 00 smog pump because the harness supports it. But after scanning my computer the referee called it a 99 engine.
Was there a late 99 emissions change in production cars?
Will putting a 99 pump on effect the computer readiness monitors?
Some readiness monitors were not yet set which is frustrating. (I don't have a tuning program)
What is the best route in this situation?
Thanks again for the advice.

joecar

Specifically what did the referee not like about the EGR solenoid configuration...?

Post some closeup pics of your engine bay.

P0412: you will have to find out and fix what is wrong, see here: 1999 Camaro P0412

Looks like the 1999 and 2000 AIR pumps are different, this might be why you see P0412.

Is your PCM from a 1999 Camaro with LS1 engine...?

edit: fixed url/spelling.

aqadavey1

iTrader: (1)

Hi joecar and thanks for the reply. I got the m6 computer and engine harness from a member here who said it was a 99. The ref said for me to delete the 2000 style egr solenoid and (round) valve that it actuates. My engine guy says I also need to run the smog pump intake from the air box just like the late 99 and 2000 do. Without that he says the car will through codes and the readiness monitors will not set. The re did not check my smog pump. My harness has the one plug for the pump where as the 99 has two, one for the solenoid and one for the pump itself. Question: if I go with the 99 pump, can I simply run the solenoid wire down to the 99 pump? or is it wired to a different pin in the 2000 computer?

aqadavey1

iTrader: (1)

aqadavey1

iTrader: (1)

The top photo shows my original configuration with 99 pump. 4th photo down shows the egr solenoid wire on top of the engine next to the fuel rail (drivers side) this wire should be down by the pump for a 99 wiring configuration. Can I extend this solenoid wire down to run the 99 pump? (99s had the solenoid on the pump) My car is at the exhaust shop so no current photo until monday.

joecar

You're mixing the terms EGR and AIR, but I knew what you meant

If you can get in writing (including a hand drawn diagram) of what is required, then it will be easier (you can then tell him: see, look, I did what you specified...)

what car is this engine in...?

joecar

I fixed the broken url in my first post above.

aqadavey1

iTrader: (1)

The Marine who I got It from said the engine was in his buddy's 99ss Camaro. It's now in a 91 Camaro Z28. The car now has 4th gen (98-02) interior, body harness, rear end, gas tank, radiator& fans, T-56, aluminum drive shaft, etc.

aqadavey1

iTrader: (1)

This diagram indicates that the circuits and components are essentially the same throughout the years. While the 99 has the solenoid on the pump and the (99)-2000 has it on the intake manifold, essentially they are the same. Therefore, it would seem that I should be able to relocate the solenoid as the ref wishes, and it should complete its reediness test and throw no codes. Sound plausible?

joecar

Yes

( and yes if that DTC stays gone )