Another Idle Issue...

[munyac5]

So as of last Saturday I noticed something abit weird.

On cold starts only in P or N after about idling for about 1min the car starts missing beat, jerking, vibrating and engine coughing black smoke like its about to stall. If I slightly accelerate it feels weak and feels like it’s about to stall. The revs at no stage drop or fluctuate.

This continues for about 2mins then on its own, idles perfect with no black smoke or anything. At this point in time the temp gauge is like 1/4 and also drives perfect and continues to do so when warm. Turn off/back on and noticed as long as the temp gauge is on around ¼ everything’s fine, anything below it continues to happen. This has been doing the exact same process since Saturday on each occasion when cold.

Yesterday I did an oil change, Nulon full synthetic and oil filter and did a trans flush with kit at the same time as it was due. My Mechanic also checked plugs n leads and were fine.

This morning I start it and the same sh1t.

Any ideas? Do I need to start replacing the 02sensor/TPS or clean the TB?

The car has had a cappa ver1 tune when I bought it. Could it be just the sh1ty tune doing this?

Can I keep driving it and not worry until I get my final mods done and get it all custom tuned with the xcal3

Also, is it normal for the temp gauge to reach half way (2/4) bar on hot days. Just want to confirm as iv'e seen other posts whereby it never goes over the 1/4 bar.

[davidald]

Did you reset TPS? You probably need codes to track down a faulty sensor.

[munyac5]

Reset? Don’t think so…Would this have caused it?

Should I put it under the diagnostic tool that you plug in to read for codes?