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ok now that ive been running the bronco since Thurs 12th...ive notice the motor is running a touch rich...no smoke tho. also when im trail riding, no issues. but, when i drive a short or long distance above a certain rpm...when i come to a stop(ie. traffic light,stop sign,etc.) it takes a good 20-30secs. before it will come back to the set idle. this is kinda aggrivating since it makes down shifting a pain. can anyone give me some thoughts on this.
motor is a 91 mustang 5.0 HO, a9l computer,rjm harness,egr delete, new o2 sensors,new coil,wires,plugs. thanks,Chuck
77 built 306,Trickflow Cam/Alum Heads/dome pistons/10:1comp,nv3550,duff long arms,3.5" lift,family cage,protofab rear bumper,twin sticked, and 35KM2'sG.D.I.
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TPS? Although seems like that'd give you more trouble than this...
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Air Charge Temp or MAF sensors??? Have you cleaned the MAF with some non contact cleaner?
'74 Grocery Getter, '73 Project Buggy, '77 Parts Rig
![[Image: Bannerpic.jpg]](http://i259.photobucket.com/albums/hh295/SC74Bronco/Bannerpic.jpg)
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Do you run a vehicle speed sensor?
'72 TBA...
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id go with bucketofbolts, you need the vss it tells the engine when you are stopped, moving, slowing down, it will also cause your slight running rich problem
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i do have a used VSS installed, i never cleaned the MAF(look ok according to chuzie) the air charge is used as well. we adjusted the tps when we got it going.
77 built 306,Trickflow Cam/Alum Heads/dome pistons/10:1comp,nv3550,duff long arms,3.5" lift,family cage,protofab rear bumper,twin sticked, and 35KM2'sG.D.I.
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What is your base timing set at?
'72 TBA...
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we set it stock, i think around 12-14btc
77 built 306,Trickflow Cam/Alum Heads/dome pistons/10:1comp,nv3550,duff long arms,3.5" lift,family cage,protofab rear bumper,twin sticked, and 35KM2'sG.D.I.
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Stock should be 10* BTC. But 12-14* shouldn't be excessive.
When it returns to normal idle what is the rpm?
'72 TBA...
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no clue, my monster tach bit the dust...i have to replace or fix it
77 built 306,Trickflow Cam/Alum Heads/dome pistons/10:1comp,nv3550,duff long arms,3.5" lift,family cage,protofab rear bumper,twin sticked, and 35KM2'sG.D.I.
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