Last Fall I noticed my e21 with a m20 engine would start and then not idle until it was warmed up; temp needle over 1/4. I thought I had it fixed when I replaced the temp sensor.
Went out today and started the car after a long cold winter. Car started right up but will not idle at all until it is warmed up. Once it warms up; perfect 850rpm idle.
So I am thinking there is a vac. leak. Could the icv leak at the front of the throttle intake and cause this problem? It did seem a bit lose. I tried some carb cleaner, but idle did not change.
However, when I moved the icv around the idle changed. So I am thinking vac. leak at the boot intake, or somewhere related to the icv.
Also, the brake booster connection to the front of the throttle does not seem all that tight...
Any ideas???
Car runs so good when it is warm.....and not at all when cold:(
thanks for any help,
jm
Went out today and started the car after a long cold winter. Car started right up but will not idle at all until it is warmed up. Once it warms up; perfect 850rpm idle.
So I am thinking there is a vac. leak. Could the icv leak at the front of the throttle intake and cause this problem? It did seem a bit lose. I tried some carb cleaner, but idle did not change.
However, when I moved the icv around the idle changed. So I am thinking vac. leak at the boot intake, or somewhere related to the icv.
Also, the brake booster connection to the front of the throttle does not seem all that tight...
Any ideas???
Car runs so good when it is warm.....and not at all when cold:(
thanks for any help,
jm
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