My Turn.(Limp home mode? - rv)
#1
Racer
Thread Starter
Join Date: Aug 2008
Location: ft lauderdale
Posts: 427
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Yesterday, After driving about 20 miles My 89s4 started running like a tractor! Seems as if it went into Limp home mode. Hardly any power and extreme rough shifting. ( Automatic) the car would idle at stoplights but barely, the sound was like a blown muffler or headgasket without the other symptons. I was thinking, blown hose somewhere in the vaccum system. It was at night, so I drove it home and parked. This morning, started it....same thing. Looked around the hoses, didn't see anything. Took the other car. 928 sat all day. Tonight, it fires right up, drove it around and everything is fine. But I'm freaking out. Any ideas what's going on?
#2
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Got an '89 here that had the same issue that eventually went to no starting at all.
Put in a new MAF and I think that has cured it.
My wifes '90 did the same thing a couple of times but can't get it to repeat it. Been a few months since it happened last.
Put in a new MAF and I think that has cured it.
My wifes '90 did the same thing a couple of times but can't get it to repeat it. Been a few months since it happened last.
#3
Racer
Thread Starter
Join Date: Aug 2008
Location: ft lauderdale
Posts: 427
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Could it be debris or something? I changed the filter to K&N around July. I did lift the Airbox this morning, didn't notice anything strange. I must admit, I was more embarrassed from all the racket the car was making, than of it dying on me.
#6
Racer
Thread Starter
Join Date: Aug 2008
Location: ft lauderdale
Posts: 427
Likes: 0
Received 0 Likes
on
0 Posts
#7
Addict
Rennlist Member
Rennlist Member
Join Date: May 2001
Location: Wilbraham, MA
Posts: 2,758
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Chaad thought but didn't mention that K&N's have been blamed for MAF failures. If I recall correctly, the oil causes problems with the hot wire.
If you can borrow a MAF and swap it, you will know quickly. If you were in MA, I would offer to lend you my spare
If you can borrow a MAF and swap it, you will know quickly. If you were in MA, I would offer to lend you my spare
![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
Trending Topics
#8
Addict
Rennlist Member
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Last year, I had the same symptoms
, and with the help of Dr. Bob, and my mechanic Jules Hauer, the problem was the MAF. Has been running fine ever since
![banghead](https://rennlist.com/forums/graemlins/banghead.gif)
![thumbup](https://rennlist.com/forums/graemlins/thumbup.gif)
#10
Team Owner
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
you might also consider getting some MAF spray cleaner at the parts store (its made for MAF) anyway clean the inside of the MAF before you install it and toss the KnN the factory filter works fine
#12
Administrator - "Tyson"
Lifetime Rennlist
Member
Lifetime Rennlist
Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
I tend to use the whole can per MAF
![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
![](http://ec1.images-amazon.com/images/I/31HGKHY8AJL._AA280_.jpg)
#13
Racer
Thread Starter
Join Date: Aug 2008
Location: ft lauderdale
Posts: 427
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
I know this is early into the "fix" but ...WOW!...this CRC stuff lives up to the billing. I went back to the OEM MAHLE filter, followed the straight forward instructions on the MAF cleaner can. Boom! Car goes like a bat outta hell. total cost??? $29 bucks! Woo hoo! So far, so good. If problem returns will re-open thread....but as of right now...I'm not in the K&N camp.
#15
Team Owner
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
now your going to asking about what to do with the new KnN filter, Its best to hide it so no one knows what you have done............. LOL