Just started getting a loss of power under light acceleration. Mostly noticable when I try to speed up at around 30 to 40 mph cruising speed. If I go light it is fine and also fine if I mash it, just pissy at about 1/4 throttle. Woulld appreciate some help. Also no cel on. Thanks.
light acceleration problem
- Thread starter shonut260
- Start date
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jayro
SHO Member
Did you check for any codes? Also have you tries cleaning your MAF? What is your maintinance like? Need a little more info to troubleshoot
Jeremy
Jeremy
Plugs and wires 2 years ago along with thermostat and all top end seals replaced. I do have an exhaust leak right now that is getting worse. Waiting on the parts to fix it. Was a dynomax exhaust that was on when I got it and has been getting replaced as it rots out. Now running flowmaster 50 series and no res.
SHOtime2511
CGP
Check for codes and report back.
bubba
ATX Connoisseur
sounds like what I dealing with right now!...
TopGunnYFZ
Active Member
What plugs did you put in it? My car ran like this shortly after I bought it and I came to find it had Bosch Platinums in it and 2 of them were melted. Replaced with some new Motorcraft's and she ran perfect!
Hope thats it!
lowc
aka vapah lock
belive it or not mine was doing the same thing not to long ago and i as well had exhast leak fixed exhast and no more issue i think i was lossing to much back presure
Running autolite dbl plat just got done checking the front 3 all is good, gonna fix valve cover leak this weekend will look at the back ones then. The 511 code is saying pcm problem. Exhaust is fixed up now and it changed notta.
The 511 is not a good thing - indicating you have a pcm issue. I'd reset codes and run it for a while to see if that one returns. If so, I'd swap out the pcm.
335 could be the dpfe sensor or could be wiring issue to it. I'd check connections on that circuit first.
335 could be the dpfe sensor or could be wiring issue to it. I'd check connections on that circuit first.
93rev2sev
SHO Member
How did you clean the MAF?
91PDXmocha
Active Member
Dont use carb cleaner, use Mass air flow cleaner !
Disconnected the MAF and no difference still ran crappy at light acceleration and now it stumbles on occasion at idle. Still getting the 335 code no 511. 335 says it is an egr code for the sensor circuit but have it shut off with the tweccer. But being as it runs the same when I switch back to stock program I guess it still is on now I start lookin at the egr system.
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