Heyho, its me, again...
have severe stumble / misfire issues with my 89
Renix.
If im in P it Starts up every 5th or 6th try, Then it idles quiet low. If i accelerate slowly it runs great, if i acc a Bit more it „Stucks" at 1k rpm and stumbles, stutters and sometimes is misfiring, if i accelerate more it runs well again.
I cant Drive Like that obviously and it is anoying that it now starts to not start properly anymore...
What did i do?
Spark Plugs + Cables
IG Coil + Cap and rotor
Redid and added all the grounds
Big Cable Upgrade (except Alternator)
Removed and cleaned TB + new Seal
Removed and cleand IAC
Testet and set TPS
New Map
Checked harness ground
New Injectors (genuine Bosch 746)
New Fuel Regulator
New Fuel Filter
New Fuel Pump
New Valve Covergasket
Complete new Vacuum Harness Front and back
Im quiet lost. Im throwing parts at that thing that it should love and its Just disappointing.
The PO „removed" the EGR Valve by Just cutting and soldering the hose to the exhaust... I unplugged the EGR Vac line and closed it off.
I Even Removed the CC to rule that out...
What is throwing me Off completely is that After changing the injectors and the preassure regulator it got worse (Not starting at First try, but when it runs its Smoothie, yet the stumbling stays)
Im totally out of ideas and i feel stupid AF.
Any help? First one to solve it gets a beer as
have severe stumble / misfire issues with my 89
Renix.
If im in P it Starts up every 5th or 6th try, Then it idles quiet low. If i accelerate slowly it runs great, if i acc a Bit more it „Stucks" at 1k rpm and stumbles, stutters and sometimes is misfiring, if i accelerate more it runs well again.
I cant Drive Like that obviously and it is anoying that it now starts to not start properly anymore...
What did i do?
Spark Plugs + Cables
IG Coil + Cap and rotor
Redid and added all the grounds
Big Cable Upgrade (except Alternator)
Removed and cleaned TB + new Seal
Removed and cleand IAC
Testet and set TPS
New Map
Checked harness ground
New Injectors (genuine Bosch 746)
New Fuel Regulator
New Fuel Filter
New Fuel Pump
New Valve Covergasket
Complete new Vacuum Harness Front and back
Im quiet lost. Im throwing parts at that thing that it should love and its Just disappointing.
The PO „removed" the EGR Valve by Just cutting and soldering the hose to the exhaust... I unplugged the EGR Vac line and closed it off.
I Even Removed the CC to rule that out...
What is throwing me Off completely is that After changing the injectors and the preassure regulator it got worse (Not starting at First try, but when it runs its Smoothie, yet the stumbling stays)
Im totally out of ideas and i feel stupid AF.
Any help? First one to solve it gets a beer as