nurkvinny Posted September 27, 2004 Report Share Posted September 27, 2004 Anyone know what the voltage range for the MAF on a 98 GTP should be? Mine starts around .6 at idle/ light cruise, then goes up steadily from there. I am getting MAF Low Voltage codes about once every 50 miles. SES light is triggered each time. Clear the codes, and it's good for about a day. Going to pull it off, inspect it, clean it, and reinstall tonight. Wiring looks good. thanks! Quote Link to comment Share on other sites More sharing options...
MrMeanGreen Posted September 27, 2004 Report Share Posted September 27, 2004 Call my brother. IM me if you need his #. Quote Link to comment Share on other sites More sharing options...
nurkvinny Posted September 27, 2004 Author Report Share Posted September 27, 2004 He doesn't answer the damned thing anyways. tongue.gif Found my answer. I found out that my scanner also provides detailed descriptions of every code, and many possible causes. The most likely causes of that code are: - poor wiring - failed MAF sensor - bad PCV valve (who would have guessed) - bad ground - blocked intake ducting ... Removed the PCV (which is a crazy looking one on this motor BTW), and cleaned a ton of shit out of it and reinstalled. Drove ~20 miles, no light. Also, removed MAF and scraped the contacts up. We'll see how she does tomorrow. Quote Link to comment Share on other sites More sharing options...
SHIEF Posted September 28, 2004 Report Share Posted September 28, 2004 Check your air filter also if you haven't, this will cause a MAF code as well if it's decently dirty. If the light comes on again replace that PCV valve. If that doesn't work, do like it said and check the wires (maybe rubbing through)/grounds, if all looks good then it needs the MAF sensor. You might have it fixed though smile.gif Quote Link to comment Share on other sites More sharing options...
Nate1647545505 Posted September 28, 2004 Report Share Posted September 28, 2004 My MAF readings sit around 2,000hz at idle, 4,000hz when cruising, and 10,000hz at WOT. Quote Link to comment Share on other sites More sharing options...
nurkvinny Posted September 28, 2004 Author Report Share Posted September 28, 2004 Originally posted by SHIEF: Check your air filter also if you haven't, this will cause a MAF code as well if it's decently dirty. If the light comes on again replace that PCV valve. If that doesn't work, do like it said and check the wires (maybe rubbing through)/grounds, if all looks good then it needs the MAF sensor. You might have it fixed though smile.gif Thnx for the reply. Air filter replaced the day I bought it. PCV valve is sitting at dad's shop, putting in Saturday. Wires all look fine, all connections spotless now. I hope it's fixed smile.gif Stayed off all day today, knock on wood. Quote Link to comment Share on other sites More sharing options...
nurkvinny Posted September 28, 2004 Author Report Share Posted September 28, 2004 Came back on an hour after I posted above, SOB. There goes next week's beer money. smile.gif Quote Link to comment Share on other sites More sharing options...
SHIEF Posted September 29, 2004 Report Share Posted September 29, 2004 Try the pcv 1st...then shell out da dough for the MAF. Man I remember the days when there wasn't a 'check engine light', and just a carb and alt light. Then I remember that I'm 21 smile.gif That sucks though, oh well. Quote Link to comment Share on other sites More sharing options...
nurkvinny Posted September 29, 2004 Author Report Share Posted September 29, 2004 Ordered a used MAF today for 1/3 retail cost, including S/H and tax. And, I know what you mean. MOST of the tuning I do it on a carb by ear. smile.gif Quote Link to comment Share on other sites More sharing options...
SHIEF Posted September 29, 2004 Report Share Posted September 29, 2004 Cool, keep me/us updated. Quote Link to comment Share on other sites More sharing options...
nurkvinny Posted October 7, 2004 Author Report Share Posted October 7, 2004 New (used) MAF sensor installed yesterday morning. Codes deleted. No SES lights since (~175 miles). It was still worth trying the cheap/free fixes first smile.gif . Quote Link to comment Share on other sites More sharing options...
SHIEF Posted October 8, 2004 Report Share Posted October 8, 2004 graemlins/thumb.gif Yeah always try and save money. Good to hear. Quote Link to comment Share on other sites More sharing options...
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