Ok i'm having a few problems with this truck, and i'm hopeing maybe a few of you guys could help me out. The truck is a 96 4x4 with a manual transmission. Now the thing about this is i'm having problems with running the rpms on it up. When at idle the truck is fine it runs smooth and normally, however everytime the rpms get to around 3500-4000 the truck will kick off or make a deep lulling sound and not seem to accelerate anymore. I can shift so long as I do it before before the tac gets the rpms over 3500. I had it put on a computer and it only turned one code for the mass airflow sensor which was purchased and put on only to not the situation the truck is still doing the same things and i cant figure it out, please let me know if anyone has had this problem before and how you corrected it. thank you very much
-J-Rod
If you disconnect the plug for the mass airflow sensor, does the problem persist? It also might sound like a plugged catalytic converter, but I don't think the computer would be able to sense that and store a code. Anyway, the symptoms for a plugged cat are poor performance when engine speed increases. Try unplugging the MAF sensor first, and see if the problem goes away. The truck should run satisfactorily with the sensor unplugged. It won't run great, but it shouldn't fall on its face either. Without that sensor, the computer would revert to somewhat of a "limp home" mode, where it would just use MAF values in a table in the software. If it's a physical problem, like a plugged converter, unplugging the MAF sensor probably won't make much of a difference, and it may give you a clue that the problem is mechanical rather than electrical.
I think it also might be the cat. My exaust smelled like rotten eggs untill it was replaced. Also, when was the last time the fuel filter was replaced? A $10.00 part can go a long way. I had a pluged fuel filter and didn't even no it untill I replaced it and found out I couldn't blow thru the old one. Just a thought
If you disconnect the plug for the mass airflow sensor, does the problem persist? It also might sound like a plugged catalytic converter, but I don't think the computer would be able to sense that and store a code. Anyway, the symptoms for a plugged cat are poor performance when engine speed increases. Try unplugging the MAF sensor first, and see if the problem goes away. The truck should run satisfactorily with the sensor unplugged. It won't run great, but it shouldn't fall on its face either. Without that sensor, the computer would revert to somewhat of a "limp home" mode, where it would just use MAF values in a table in the software. If it's a physical problem, like a plugged converter, unplugging the MAF sensor probably won't make much of a difference, and it may give you a clue that the problem is mechanical rather than electrical.
I am having a similiar problem with an 87 se v6 kingcab 4x4. I will not rev above 2800. I pulled the connector off the MAF and it stopped running. Does this mean that the maf is bad?
I am having a similiar problem with an 87 se v6 kingcab 4x4. I will not rev above 2800. I pulled the connector off the MAF and it stopped running. Does this mean that the maf is bad?
is it throwing a MIL code?
also, you guys should hit your MAFs with some contact cleaner periodically.
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Steve Rockwood
98 SE-R - 462whp 12.23@129.8 (street tires)
93 G20 - VVL
92 G20 - SE-R CUP bound...
Linear Mode
