A Line Mechanic reports being pressured by Maintenance Control to sign-off an EMB/ERJ-140 aircraft that had landed in emergency conditions due to electrical smoke and fumes in the Flight deck.

Narrative

This is a safety concern report only. I was being pressured by Maintenance Control to sign off a discrepancy on an EMB/ERJ-140. The Pilot report was electrical smoke/fumes in the Flight deck; while in flight. An Emergency landing was performed into ZZZ. I arrived at ZZZ; and there was a Flight Crew at the aircraft that was sent there by Maintenance Control; not the same Crew that wrote up the problem. Maintenance Control told me the (Maintenance) turn-over read that Contract Maintenance could not find anything wrong; although they did not document that in the logbook. Maintenance Control said I was sent just to get the aircraft back; that's why the Flight Crew was standing by the aircraft when we arrived. I refused and told Maintenance Control the aircraft needed to be Inspected for the source of the smoke in the cockpit; Maintenance Control was then angry because the Crew was then sent to the hotel. I also asked Maintenance Control if this should be a 'Service Difficulty Report'? I was told; 'you let us decide; but probably not.' I found the Chart holder had a live (electrical) wire loose in the Chart holder; but I could not prove this caused the smoke; so I requested a restricted flight cycle deferral; but Maintenance Control did not want this; so they called Mr X at ZZZ1 to pressure me and told him that I would not comply with Maintenance Control. But after explaining the situation to Mr X; he agreed with me and he said he would call Maintenance Operations and Maintenance Control and set them straight. As a note I don't have this trouble with all the Maintenance Controllers; but there are a few I have had repeated problems with. I determined the event had occurred because I performed aircraft maintenance in accordance with (IAW) the FAR's; General Procedures Manual (GPM); and with the highest regard to safety. I want to make sure the aircraft is safe; because of this I came into conflict with Maintenance Control. Maintenance Control wanted the aircraft right now. They tried to pressure me into signing the aircraft off; and were telling me I could not open up areas to Inspect electrical wiring and such. I requested to talk with Maintenance Operations; but the Controller refused my request many times. This has been a systemic problem with Maintenance Control; and just keeps getting worse. I don't know what to suggest to avoid a recurrence other than that I just keep following the established procedures; but I do this at the extreme risk of being sent home for investigations against me that never have resulted in any wrong doing on my part. I am just trying to do my job the way the company and the FAA require. When on these road trips I have to call Inspectors and the Safety department all the time to get their advice on these events with Maintenance Control.