Warm up i have always known to warm up a car in the morning before driving, i have a 78 camaro with a straight 6, of course it idles high when you first start it till you gas it to bring it down to take off, is that right? i let it idle high for a good warm up for 5 to 8 minutes.is that right too? i was just told by a mechanic i dont need to let it warm up at all, not even in the morning, just take off. is that true? then why does ti idle so high if you dont have to warm it up?

The Mopar slant six engines - Allpar

www.allpar.com/slant6.html

The 1977 "Super Six" with a two-barrel Carter carb compensated for smog ... Heavy-duty slant six engines used in industrial and some truck/bus (perhaps fleet as well) ...You can retrofit the double roller chain and gears into car slant sixes, .... of way to have a twin exhaust system because, man, will that do wonders for a six.

Chevrolet straight-6 engine - Wikipedia, the free encyclopedia

https://en.wikipedia.org/wiki/Chevrolet_straight-6_engine

WikipediaMany popular cars and trucks, including the Chevrolet Camaro, Chevrolet Impala, ....resulting in an unequal and unbalanced work load between the six cylinders. ... in the 261 truck engine and used triple side draft, single barrel, Carter Model YH .... The '78 Camaro had 105 horsepower (78 kW) and 190 ft·lbf (260 N·m) of ...

Check your mass air flow sensor on your air intake it has a connector plugged in it or just take it in for a full tune up

what was the problem you had at first and it sounds like that shop knows nothing https://www.facebook.com/TedsRepairs email me there ted

Yeah, I'm from Minnesota, so know what you mean. You need to check the flow of air. A couple things. Is it any better if you have the re-circulator on? Also, does the temperature gauge vary any between idle and driving?

Try idle in neutral with the engine running at driving RPM - does that make a change?

I suspect a flow restriction at low RPM.

Get back to me.

IAC (idle air control) can not maintain idle target speed

The smoking is probably due to worn valve guides.. the oil from the top..the head.. is leaking past the valve stem into the cylinder.. next morning or a few hours later when you start the car.. it burns this oil up..and the problem although still there is much less noticeable.. cause the amount leaking is minute..it's being burned as you drive.. otherwise it takes a while for it to accumulate.. It could mean a minor head/top end rebuild to a minor overhaul..

The emissions problem and the idle problem may be linked.

First make sure your throttle cable is clean and working properly. They can get dirty.. sticky..or even a weak spring.. but dirt rust and grime..biggest culprits.

There is an IAC (Idle air control) valve attached to the throttle body.. you may be able to spray carb cleaner into the closed throttle body to clean it.. You may need to replace this part. It can really get clogged with carbon.. and cause this high idle problem.

Next.. replace or remove/clean/reinstall the EGR valve...probably better off just replacing it.

Check all vacuum lines for cracks..replace as needed..vacuum hose is cheap.. and lastly.. do a minor tune up.. plug wires.. plugs (properly gapped of course). air filter and fuel filter..

Your car will probably pass the smog check even with the cold startup burning oil issue.. that's not what's causing it to fail..it's the EGR valve and possilbe lack of recent tune up.

You can continue to add oil between changes.. use a heavier weight.. and check often.. Once consumption gets more than a quart or so between changes..you can contemplate the real fix... or start pouring anything with the word miracle into it.(grin).

Great little car.. Best of luck!

When the engine and oil are cold it will show a high pressure because of the viscosity of the oil. When it warms up the oil is thinner. If it doesn't drop below 20-25 psi at warm idle I wouldn't worry about it as that is normal.

you prob need a coolant temp sensor

High idle only, not rev.

does it have a cold start injector seperate from the other injectors usually on the upper intake somewhere with a fuel line going to it