Rough idle- speedo not working

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10-22-2012, 06:29 AM

87Iroc5.0

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Join Date: Aug 2012

Location: Chicago- West Suburbs

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Car: 1990 GTA

Engine: 355

Transmission: T-56

Axle/Gears: 3.90

Rough idle- speedo not working

Hey all. I have an 87' Iroc with an l98 that was running rough so I was messing around with the MAF sensor. Thought maybe it went bad so I got another and plugged it in and it made it worse. So put the old one back in and I noticed the female connection on the MAF was not snug so I made sure it was plugged in good... Started right up and it feels a little better.. Responds better and the idle has improved but now I noticed the speedo is not working now!! Any suggestions or ideas would be appreciated! Thanks in advance.