cutting out high rpms

[CrazySupra]

1991 Supra Turbo cuts out around 5000 rpms. Completely stock other than 3inch from turbo back no cats. Gap on spark plugs???

Thanks
Crazysupra

 

[Van]

1991 Supra Turbo cuts out around 5000 rpms. Completely stock other than 3inch from turbo back no cats. Gap on spark plugs???

Thanks
Crazysupra

It may be that... Any codes? When did this first start happening? Van

 

[CrazySupra]

no codes... Never really noticed it before but never got on it afraid something would break. It's an auto so I took off in 1st and was fixin to shift to 2nd when I noticed it. It was not over the redline. Just felt like it almost wanted to backfire or something. I had a supercharged mustang years ago and it kind of did the same thing and it ended up being the gap on the plugs (blowing out).

 

[benchwarmer]

What kind of plugs are you using?

 

[Van]

no codes... Never really noticed it before but never got on it afraid something would break. It's an auto so I took off in 1st and was fixin to shift to 2nd when I noticed it. It was not over the redline. Just felt like it almost wanted to backfire or something. I had a supercharged mustang years ago and it kind of did the same thing and it ended up being the gap on the plugs (blowing out).

I see... No codes. When was the last time you worked or had work done on it? It couldn't hurt to check the plugs and the wires. Look in the online TSRM for more: it also has a decision tree in the ignition section, under trouble shooting. http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?Section=IG&P=3 Van

 

[OfnaRcR4]

My car was doing the same thing and it turned out that the plugs were bad and the gap wasn't quite right.

 

[noel]

it feels like fuel cut but with no cel?? this happened to me and it was the spark plugs werent gapped right i currently use ngk heat range 7 driftmotion sells them