R3VLimited Forums

Go Back   R3VLimited Forums > E30 Technical Forums > Engine & Drivetrain > M10

Reply
 
Thread Tools Search this Thread
Old 02-28-2019, 02:42 PM   #1
Sonny
Banned
 
Join Date: Feb 2019
Location: Norcal
Posts: 100
Car won't go past 75mph, 4krpms.

First off muffler now shakes didn't do this before . Okay so driving it's fine I notice a little decrease of power. Getting past 2nd gear the car hesitates. She won't go past 3,500 rpms and is very slow picking up. 75mph I floor the car and she stays at 80mph and won't go past 4krpms either, this never happened before at the track what do you guys think please help. She idles fine as I put a penny in the icv and can redline while revving. Thank you!



She has terrible mpg now to.

Sent from my Pixel 3 XL using Tapatalk
Sonny is offline   Reply With Quote
Old 02-28-2019, 04:25 PM   #2
1984CJ7
Member
 
Join Date: Jan 2019
Location: Northern VA
Posts: 47
having a somewhat similar issue with my 87 with an ETA. Hopefully someone can help us out
__________________
My rigs:
1984 Jeep Cj7 (my baby)
Lifted 2006 Subaru Baja (the daily)
1987 BMW 325e Off-road Build (the new hotness)
1984CJ7 is offline   Reply With Quote
Old 02-28-2019, 07:00 PM   #3
Sonny
Banned
 
Join Date: Feb 2019
Location: Norcal
Posts: 100
Quote:
Originally Posted by 1984CJ7 View Post
having a somewhat similar issue with my 87 with an ETA. Hopefully someone can help us out
You'll get help alright, not me though. Only rogue toaster has helped me

Sent from my Pixel 3 XL using Tapatalk
Sonny is offline   Reply With Quote
Old 03-01-2019, 09:49 AM   #4
Jaxx_
E30 Mastermind
 
Jaxx_'s Avatar
 
Join Date: Dec 2009
Location: Durham, NC, USA
Posts: 1,773
What did you change before it was happening? You might have changed your spark plugs wires—verify those, or messed up your vacuum advance hose to the distributor
__________________
'84 318i M10B18 | 93whp/90ftlbs | 147- Safari Beige | MS2E w/ LC, 2-Step
Jaxx_ is offline   Reply With Quote
Old 03-01-2019, 09:52 AM   #5
Sonny
Banned
 
Join Date: Feb 2019
Location: Norcal
Posts: 100
Quote:
Originally Posted by 1984CJ7 View Post
having a somewhat similar issue with my 87 with an ETA. Hopefully someone can help us out
CHECK OUT YOUR CAT CONVERTER! SOLVED my issue. When the car is cold it doesn't have issue until it gets warm, hence the cat chokes up instead of burning waste fuel since it's clogged

Sent from my Pixel 3 XL using Tapatalk

Last edited by Sonny; 03-01-2019 at 10:00 AM.
Sonny is offline   Reply With Quote
Old 03-01-2019, 09:55 AM   #6
Sonny
Banned
 
Join Date: Feb 2019
Location: Norcal
Posts: 100
Quote:
Originally Posted by Jaxx_ View Post
What did you change before it was happening? You might have changed your spark plugs wires—verify those, or messed up your vacuum advance hose to the distributor
It was a cat converter I had installed brother! Helped a heap as I replaced it, but something still is off. And the spark plugs and wires are from previous owners order, although it was a kid. Come to think of it I think it might be wrong all along, I couldn't find a photo of the way the distributor spark plugs and wires lead In the Benley manual so I went in order the previous owner did. crap, thank you so much man I'ma look into that

Sent from my Pixel 3 XL using Tapatalk
Sonny is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -7. The time now is 10:04 PM.


Powered by vBulletin® Version 3.8.10
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Copyright 2004 - 2020 R3VLimited LLC