08-11-2016, 10:01 AM
So Expo came and went and the car struggled to get there and struggled to get back. Misfiring issues came on harder than ever, perhaps the cold had something to do with it.
Two coil packs, two sets of plugs, disconnecting the injectors one at a time has an effect on all cylinders so there is no bad one. When misfiring the car make white smoke. Not oil or coolant loss. 300 miles used 1.5 tanks which is way more than usual. Working the throttle repeatedly always cleared the issue and returned power. When not misfiring no smoke. Very little heat from the heater matrix when travelling however stuck in traffic it got warm as expected. Dash is always reading minimum and when in traffic gets up to 75.
From this my latest thoughts are that the TPS is at fault. Its one of the few sensors the omex has and it was located very close to a filter i had on the cam cover breather which leaked oil everywhere. When blipping the throttle i believe it clears the contacts and gets the correct reading to get back to the correct part of the map. When its reading incorrectly its running rich and dumping all the fuel causing the white smoke. New TPS is still in the post somewhere as I ordered this weeks ago from Emerald. Yet to confirm with a laptop!
As for the no heat issue I reckon the thermostat is stuck open. I bought the car with coolant over the engine bay and the previous owner said he had fitted several thermostats but couldnt find the right one. Reading several threads on the gti6 forum says with stuck open thermostats peoples cars went no higher than 75 which matches exactly my issue. The engine never getting up to temp apparently makes it run even richer which again supports the running issues im experiencing. Opening at 83 degrees is standard so Ive bought a new one from ECP.
Also after discussing spark plugs further with Stef Im still running ones which are too hot. Looks like NGK 3330 = part #BCPR7ES or 6097 = part #BKR7E will be the right temp. Used in saab 2.3 turbos and supras.
Hopefully TPS, sparks and the thermostat will be the answer!
Two coil packs, two sets of plugs, disconnecting the injectors one at a time has an effect on all cylinders so there is no bad one. When misfiring the car make white smoke. Not oil or coolant loss. 300 miles used 1.5 tanks which is way more than usual. Working the throttle repeatedly always cleared the issue and returned power. When not misfiring no smoke. Very little heat from the heater matrix when travelling however stuck in traffic it got warm as expected. Dash is always reading minimum and when in traffic gets up to 75.
From this my latest thoughts are that the TPS is at fault. Its one of the few sensors the omex has and it was located very close to a filter i had on the cam cover breather which leaked oil everywhere. When blipping the throttle i believe it clears the contacts and gets the correct reading to get back to the correct part of the map. When its reading incorrectly its running rich and dumping all the fuel causing the white smoke. New TPS is still in the post somewhere as I ordered this weeks ago from Emerald. Yet to confirm with a laptop!
As for the no heat issue I reckon the thermostat is stuck open. I bought the car with coolant over the engine bay and the previous owner said he had fitted several thermostats but couldnt find the right one. Reading several threads on the gti6 forum says with stuck open thermostats peoples cars went no higher than 75 which matches exactly my issue. The engine never getting up to temp apparently makes it run even richer which again supports the running issues im experiencing. Opening at 83 degrees is standard so Ive bought a new one from ECP.
Also after discussing spark plugs further with Stef Im still running ones which are too hot. Looks like NGK 3330 = part #BCPR7ES or 6097 = part #BKR7E will be the right temp. Used in saab 2.3 turbos and supras.
Hopefully TPS, sparks and the thermostat will be the answer!