I think I damaged something electrical. Laugh, But I gotta fix it.
Had positive batterty terminal attached, neg off, when I used small
battery charger, may have brushed by the MAF assembly.
later truck barely started, can idle, but stalls with no rev response
when throttle used. No check engine light.
disconnect MAF and will now rev, but rough response/ back off. Check
engine light on.
TPS tests OK. MAF voltage out stays about .95-1 volt thoughout rev
range, should it vary more?
but it is diconnected to system when revved, if connected cannot rev.
Any thoughts on this would be greatly appreciated.
MAF = Mass air flow sensor
TPS - throttle position sensor