No power under load, great idle, WTH?
#1
Rotartist
Thread Starter
iTrader: (13)
Join Date: Sep 2003
Location: Spring Hill TN 37174
Posts: 7,252
Likes: 0
Received 2 Likes
on
2 Posts
No power under load, great idle, WTH?
Ok well I timed up the car, has the timing set right on, did the emmisions removal using blockoff plates, getting great spark, 5th and 6th sleeves removed. The car starts right up every time and idles very well , it also revs up to redline sitting still,but when I start to drive the car is a little low on power in 1st (but the 5th and 6th are gone so I understand) but when I shift to second gear it almost dies and way bogs down..
Here are the things I am going to try.
Swap out ECU
Swap out pressure sensor
Change fuel filter
Any other ideas?
Here are the things I am going to try.
Swap out ECU
Swap out pressure sensor
Change fuel filter
Any other ideas?
#2
Crash Auto?Fix Auto.
iTrader: (3)
afm?
I had a thread a number of days ago discussing a random HUGE loss in powe ramong other things..........the AFM took care of 90% of my trouble (couldn't accelerate at all with anymore than 2% throttle input) but just a thought....
BTW, my car would run/start/lide MINT......but zero power and a slight miss (still working on the miss)
I had a thread a number of days ago discussing a random HUGE loss in powe ramong other things..........the AFM took care of 90% of my trouble (couldn't accelerate at all with anymore than 2% throttle input) but just a thought....
BTW, my car would run/start/lide MINT......but zero power and a slight miss (still working on the miss)
#3
Rotartist
Thread Starter
iTrader: (13)
Join Date: Sep 2003
Location: Spring Hill TN 37174
Posts: 7,252
Likes: 0
Received 2 Likes
on
2 Posts
Ok, Well I changed out the ECU, AFM, and the secondary injectors. The car doesn't exibit these issues anymore BUT it has the 3500-3800rpm hesitation, which is very wierd due to the fact that the 5th and 6th sleeves are removed....
#6
Rotartist
Thread Starter
iTrader: (13)
Join Date: Sep 2003
Location: Spring Hill TN 37174
Posts: 7,252
Likes: 0
Received 2 Likes
on
2 Posts
Well that did nothing. I guess an ecu main harness re-ground is in order. The hesitation feels really funny, but it definetly is the 3800rpm hes... It kinda just plateus and then if I blip the throttle with the clutch in it will get me past the hump.. Just no good for interstate driving that is for sure.....
#7
Rotartist
Thread Starter
iTrader: (13)
Join Date: Sep 2003
Location: Spring Hill TN 37174
Posts: 7,252
Likes: 0
Received 2 Likes
on
2 Posts
Well I fixed the problem, The TPS was bad, I replaced it and it pulls very hard all the way to redline... Now all I have to fix is the OIL pressure guage, gas guage is lazy, the list goes on...
Thread
Thread Starter
Forum
Replies
Last Post
CaptainKRM
2nd Generation Specific (1986-1992)
14
08-26-15 09:52 PM