j30 bogs out over 2500rpm

[Jebadiah]

I have a 1995 j30 and yesterday as I was pulling into my driveway the engine light came on and it started running a little rough. This morning i had a hard time getting it going buy eventually i got it running ok with one exception. Below 2500rpm it runs fine but it bogs out over 2500rpm. i figured it may have been the fuel filter so i changed that but it didnt help at all. Any ideas what might be causing the problem? Thanx for and direction.

[yodawill2000]

Have you checked the codes that lit up the Check engine light ??That might help narrow it down.

[Jebadiah]

I dont know how to check the codes. Does anyone know of a guide to check them?

[yodawill2000]

Its a Sticky on the main page of this forum.

[driverdriver]

Here's how to retrieve your codes:

zerothread/217489

[Jebadiah]

ok so I checked the codes and it was code number 12 which was Mas Air Flow Sensor. I had already replaced the fuel filter and had no difference. I pulled the MAS and cleaned it with MAS cleaner but it was really clean to start with. That also made no difference. I think I may have no choice at this point but to take it in for analysis to pinpoint the issue. Any other ideas?

[GerryO]

Check the FSM MAF trouble-shooting and specs pages, and disconnect/clean/reconnect the harness connectors to the MAF.

If it comes down to it, I believe there are MAF soldering/repair instructions floating around here somewhere and it doesn't sound like anything other than an OEM replacement unit really works.