HELP- Pre Detonation at 5k rpm
#56
Registered User
iTrader: (12)
Join Date: Dec 2009
Location: Ice Palace...not the meth lab, the skating rink.
Posts: 965
Car Info: 1995 dodge neon
are you sure that the timing belt hasnt jumped?
coils, ecu, boost leaks, fuel pressure, fuel pressure regulator, spark plugs, checked compression, checked timing belt,
what is left?
try swaping knock sensor, cam pos sensor, and crank pos sensor
if that doesnt do it...you have a wiring problem
double check for boost/vacuum leaks
take a can of brake cleaner and spray it all over any hoses, couplers, fittings everywhere
see if the idle drops or if car dies
this is way out in left field, but i have seen weirder ****. check the brake booster, make sure you arent bleeding out boost.
just for fun, try bypassing the stock boost control solenoid and use just the manual and then try just the stock.
switch your BOV back to recirculate
also check your inlet pipe under the intake manifold, if it is cracked you will get strange MAF readings.
Try to take anything modded back to stock...like I said before, many problems with japanese cars are related to something that the owner has changed on the car. the wrx is a well engineered vehicle in stock form, other than the vagina fart transmission.
coils, ecu, boost leaks, fuel pressure, fuel pressure regulator, spark plugs, checked compression, checked timing belt,
what is left?
try swaping knock sensor, cam pos sensor, and crank pos sensor
if that doesnt do it...you have a wiring problem
double check for boost/vacuum leaks
take a can of brake cleaner and spray it all over any hoses, couplers, fittings everywhere
see if the idle drops or if car dies
this is way out in left field, but i have seen weirder ****. check the brake booster, make sure you arent bleeding out boost.
just for fun, try bypassing the stock boost control solenoid and use just the manual and then try just the stock.
switch your BOV back to recirculate
also check your inlet pipe under the intake manifold, if it is cracked you will get strange MAF readings.
Try to take anything modded back to stock...like I said before, many problems with japanese cars are related to something that the owner has changed on the car. the wrx is a well engineered vehicle in stock form, other than the vagina fart transmission.
#57
Registered User
iTrader: (1)
Join Date: May 2009
Location: Oahu, HI
Posts: 309
Car Info: Hi, I'm John.
double check for boost/vacuum leaks
take a can of brake cleaner and spray it all over any hoses, couplers, fittings everywhere
see if the idle drops or if car dies
this is way out in left field, but i have seen weirder ****. check the brake booster, make sure you arent bleeding out boost.
just for fun, try bypassing the stock boost control solenoid and use just the manual and then try just the stock.
switch your BOV back to recirculate
When you tried the new ECU, that was without the UTEC correct?
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