Boosting issues
Boosting issues
Ok so ive had my 1jz in my sc for about 6 months and had no problems. Now when im driving and the car starts boosting it seems to be hitting a boost cut. Its wierd b/c i never had this problem before. If i just keep my foot floored on the gas the car will start jogging , by this i believe the car is overboosting and cutting the fuel. I need some help guys. Do you think a bcc will fix it?
I ran into the same problem - also thinking it was boost cut. Turned out it was a spark problem at 4k rpms. I replaced my cap and plug wires and it fixed it. Not sure this is your problem, but don't count the possibility out...
Jonny
Jonny
Driver School Candidate
Joined: Feb 2008
Posts: 19
Likes: 0
From: VA
Ok so ive had my 1jz in my sc for about 6 months and had no problems. Now when im driving and the car starts boosting it seems to be hitting a boost cut. Its wierd b/c i never had this problem before. If i just keep my foot floored on the gas the car will start jogging , by this i believe the car is overboosting and cutting the fuel. I need some help guys. Do you think a bcc will fix it?
Good luck
Dan
1jz's dont have caps and plug wires. Only coil packs.
Check for cracks on teh coil packs, maybee vacuum leak somewhere, what is your A/F at the cut that should be a good indication if its a boost leak, or another problem.
Check for cracks on teh coil packs, maybee vacuum leak somewhere, what is your A/F at the cut that should be a good indication if its a boost leak, or another problem.
Trending Topics
I figured thats what people ment by the wires. Im going to check that out. I have n idea what my air fuel is b/c i do not have a guage. Im guessing it has something to do with the boost. Im going to chek it out tday.
ClubLexus Stories
Celebrating Lexus & Toyota from Around the Globe
8 Tips for Improving Your Hybrid or Plug-in Hybrid's Efficiency!
Michael S. Palmer
10 Best Lexus Models No One Remembers
Joe Kucinski
TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing
Michael S. Palmer
Top 10 Lexus & Toyotas to Drive Before You Die!
Joe Kucinski
Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation
Joe Kucinski
Lexus LC500 Convertible Auction: A Preview of Rising Values?
Brett Foote
GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler
Michael S. Palmer
9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)
Joe Kucinski
2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!
Brett Foote
I experienced the same prob around 4k rpm, first I checked my plugs and then after researching here on cl I determined I was boost cutting ordered the fcd and probs gone and I beat vettes on the highway with exh and air filter.
I determined that the problem is something electrical cutting out at certain boost levels. I ordered a bcc and will see if that fixes the problem. Thats the thing about project cars, it seems that there is always something wrong wth them. Thanks for the help guys, ill let you know what happens.
Driver School Candidate
Joined: Feb 2008
Posts: 19
Likes: 0
From: VA
Thread
Thread Starter
Forum
Replies
Last Post