MEMCAL card

[Jax ZR1]

I am still getting code 42 coming up and it disables the secondary’s and it seems to run rich, but they are very intermittent, I just pulled the cover off the ecm to check the memcal card in the process I knocked the other brown and blue piece that connects to it and now I’m wondering if there is a way to tell which is the right direction to put it back on because it can go either way if you turn it end for end. Need help going on a trip with it on Friday. Thanks

[Jax ZR1]

It has a haibeck automotive technology card in it, can’t find anything in the owners manual

[dandt67]

Sent Installation Instructions with photos for the Calibration Chip to your email
Hope that helps.

[QB93Z]

Call Mark Haibeck. (630-458-8427). He will help you get the chip installed properly.

Where are you in BC? I am not familiar with Vanderhoof. I was just passing through BC (in July) on the way back from Alaska in a ZR-1.

Jim

[Jax ZR1]

Sent Installation Instructions with photos for the Calibration Chip to your email
Hope that helps.

Thank you it does help, I’m going to try and give Marc a call because in the instruction you sent it say to remove the blue piece but mine still has the blue piece on it.

[Jax ZR1]

Call Mark Haibeck. (630-458-8427). He will help you get the chip installed properly.

Where are you in BC? I am not familiar with Vanderhoof. I was just passing through BC (in July) on the way back from Alaska in a ZR-1.

Jim

Good morning Jim Vanderhoof is the centre of B.C. about 60 miles west of Prince George. You would have gone through there and then North to the Alaska highway so you wouldn’t have come through Vanderhoof. Thanks for the phone number.

[Hib Halverson]

If you are getting code 42, it's unlikely that the Haibeck calibration is at fault, however, it could be the calibration chip needs to be reseated and/or have its connections cleaned. 42 is an EST fault. Fixing it will require either repair to ignition wiring or grounds, reseating the chip, replacement of the ignition module or replacement of the ECM. Driving the car with code 42 set may result in some driveability problems.

If you have the Factory Service Manual, review the diagnosis and repair instructions for that code. You will need the FSM, an ohmmeter and a test light to solve the code. Typically, a scan tester is of little help in solving a DTC42.

[Jax ZR1]

If you are getting code 42, it's unlikely that the Haibeck calibration is at fault, however, it could be the calibration chip needs to be reseated and/or have its connections cleaned. 42 is an EST fault. Fixing it will require either repair to ignition wiring or grounds, reseating the chip, replacement of the ignition module or replacement of the ECM. Driving the car with code 42 set may result in some driveability problems.

If you have the Factory Service Manual, review the diagnosis and repair instructions for that code. You will need the FSM, an ohmmeter and a test light to solve the code. Typically, a scan tester is of little help in solving a DTC42.
Good afternoon Hib, I have tried to find the wiring issue but it is very intermittent like a loose connection just havent been able to find it just trying anything at this point, when you say driving with the code 42 set could cause problems, are you talking damage to the motor. thanks

[Hib Halverson]

Good afternoon Hib, I have tried to find the wiring issue but it is very intermittent like a loose connection just havent been able to find it just trying anything at this point, when you say driving with the code 42 set could cause problems, are you talking damage to the motor. thanks

No.
When DTC 42 sets, the engine runs on a limited spark advance curve that's built into the ignition module. It is very conservative.

Try cleaning the ignition module connections at the rear of the plenum. After cleaning the connections, tighten the bolt to the value specified in the FSM.

[Jax ZR1]

No.
When DTC 42 sets, the engine runs on a limited spark advance curve that's built into the ignition module. It is very conservative.

Try cleaning the ignition module connections at the rear of the plenum. After cleaning the connections, tighten the bolt to the value specified in the FSM.

thank you I will try that this afternoon after work.

[Hib Halverson]

Unbolt the FPR and its bracket and move it out of the way.

Feel for the 1/4 hex head bolt which holds the connector to the DIS module. Unscrew that bolt then unplug the harness.

You'll need a aerosol can of contact cleaner which has one of those plastic straws. Spray into the connector on the end of the harness. Then spray into the connector on the back of the DIS module.

Reconnect the harness and tighten the bolt.

Then, road test.

[Jax ZR1]

Still getting a code 42 after cleaning the connection , I

[Hib Halverson]

Well...go back and read what I said in post #7.

[Jax ZR1]

I replaced the battery today and and have went for a drive and it now seem to be ok. Going to keep an eye on it and hope it is ok .

[Hib Halverson]

You know...
(sigh)
...I forgot to tell you to clear codes after you cleaned and reconnected the DIS connector. Sorry 'bout that.

When you changed the battery, you cleared codes when you disconnected it.

Hopefully, the 42 will not come back and you can chalk it up to loose/dirty connections.

[Jax ZR1]

You know...
(sigh)
...I forgot to tell you to clear codes after you cleaned and reconnected the DIS connector. Sorry 'bout that.

When you changed the battery, you cleared codes when you disconnected it.

Hopefully, the 42 will not come back and you can chalk it up to loose/dirty connections.

Thanks for the help, made it as far as Seattle yesterday, hopefully the car keeps running good and the rain can stay away. Looking forward to driving down the coast highway.