Engine gremlins after thermostat - Page 3

gherardini · 24th April 2012, 19:58

Quote:

Originally Posted by Sailor24

You need to have that # for the CPS code because the description is likely wrong. The scanner was using this list
Attachment 155317
It should have been using this list but you can use it now
Attachment 155319
I would suggest you look at the plug for the vanos board bank two, guessing it is unplugged or maybe the wires to it have been pinched, then again if the car was sitting, mice love the taste of M5 wires.

no mice. i'm certain of that. but the VANOS mention makes me think that maybe i dorked something up when i put the VANOS crossover back together when i replaced the thermostat. i remember that i forgot to torque the bolts back on and covered the engine compartment and a bit of the garage floor with oil that spurted out of the two bolted cables. cleaned all that off the engine for about an hour.... possibility i messed up there? but it still brings back the question that it worked fine when i ran it in the driveway to burp the coolant system and then shut it down to pull the bumper off.

Sailor24 · 24th April 2012, 20:07

Cold idle has a different setting in the Vanos, the vanos on shut down puts the vanos in start up position. Depending on which noids are firing it may not have been able to go back to start up position.

gherardini · 25th April 2012, 06:18

Well.... mischief managed.

As I said initially, it's a rule that the first place you look is the last place you screwed with. It's also a rule that the simplest solution is the one to look at first [OK, I stole that from Occam's Razor]

With josiah's input from all the codes the vehicle was throwing, it made me think that there was simply too much going wrong with the car at once after running perfectly and sitting for 4 weeks. Therefore, it *had* to be something stupid. Some loose cable or something.

So I put the car up and got underneath with a flashlight and looked at all the connectors surrounding the coolant drain plugs and the CPS sensors. Everything looked good and I resnapped the CPS sensors just for good measure. Then I took a look at other places I screwed with when I changed the T-stat and there was a connector directly beneath the elbow of the driver's side MAF intake. I lifted the intake, touched the connector and found it loose. I resnapped it together, with a click this time, started the ///M and she purred instantly!

Damn, I hate it when it's the little things.... But thank you everyone for all of your input. I greatly appreciate the time you took to help me solve this little gremlin. I need to go for a drive....

jimmythefish · 26th April 2012, 06:53

Glad you got your car back Robert!

VacMan · 26th April 2012, 16:45

Quote:

Originally Posted by gherardini

Well.... mischief managed.

As I said initially, it's a rule that the first place you look is the last place you screwed with. It's also a rule that the simplest solution is the one to look at first [OK, I stole that from Occam's Razor]

With josiah's input from all the codes the vehicle was throwing, it made me think that there was simply too much going wrong with the car at once after running perfectly and sitting for 4 weeks. Therefore, it *had* to be something stupid. Some loose cable or something.

So I put the car up and got underneath with a flashlight and looked at all the connectors surrounding the coolant drain plugs and the CPS sensors. Everything looked good and I resnapped the CPS sensors just for good measure. Then I took a look at other places I screwed with when I changed the T-stat and there was a connector directly beneath the elbow of the driver's side MAF intake. I lifted the intake, touched the connector and found it loose. I resnapped it together, with a click this time, started the ///M and she purred instantly!

Damn, I hate it when it's the little things.... But thank you everyone for all of your input. I greatly appreciate the time you took to help me solve this little gremlin. I need to go for a drive....

Good news!

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